Bogaert AF; Skorska M (). „Sexual orientation, fraternal birth order, and the maternal immune hypothesis: a review”. Frontiers in Neuroendocrinology. 32 (2): 247–54. doi:10.1016/j.yfrne.2011.02.004. PMID21315103.
Blanchard R; Barbaree HE; Bogaert AF; Dickey R; Klassen P; Kuban ME; Zucker KJ (). „Fraternal birth order and sexual orientation in pedophiles”. Archives of Sexual Behavior. 29 (5): 463–78. doi:10.1023/A:1001943719964. PMID10983250.
„Homosexuality in men and number of older brothers”. American Journal of Psychiatry. 153 (1): 27–31. ianuarie 1996. doi:10.1176/ajp.153.1.27. PMID8540587.
Blanchard R; Bogaert AF (decembrie 1996). „Biodemographic comparisons of homosexual and heterosexual men in the Kinsey interview data”. Archives of Sexual Behavior. 25 (6): 551–79. doi:10.1007/bf02437839. PMID8931880.
„The relation of birth order to sexual orientation in men and women”. Journal of Biosocial Science. 30 (4): 511–9. octombrie 1998. doi:10.1017/S0021932098005112. PMID9818557.
Blanchard R (). „Fraternal Birth Order, Family Size, and Male Homosexuality: Meta-Analysis of Studies Spanning 25 Years”. Archives of Sexual Behavior. 47 (1): 1–15. doi:10.1007/s10508-017-1007-4. PMID28608293.
„Birth order, sibling sex ratio, and maternal miscarriages in homosexual and heterosexual men and women”. Personality and Individual Differences. 30 (4): 543–552. . doi:10.1016/S0191-8869(00)00051-9.
Blanchard R (septembrie 2001). „Fraternal birth order and the maternal immune hypothesis of male homosexuality”. Hormones and Behavior. 40 (2): 105–14. doi:10.1006/hbeh.2001.1681. PMID11534970.
Rahman Q.; Clarke K.; Morera T. (). „Hair whorl direction and sexual orientation in human males”. Behavioral Neuroscience. 123 (2): 252–256. doi:10.1037/a0014816. PMID19331448.
Bailey JM; Vasey PL; Diamond LM; Breedlove SM; Vilain E; Epprecht M (). „Sexual Orientation, Controversy, and Science”. Psychological Science in the Public Interest. 17 (2): 45–101. doi:10.1177/1529100616637616. PMID27113562.
Joseph M. Currin; et al. (). „Multidimensional Assessment of Sexual Orientation and the Fraternal Birth Order Effect”. Psychology of Sexual Orientation and Gender Diversity. 2 (2): 113–122. doi:10.1037/sgd0000103.
Bogaert AF (februarie 2005). „Sibling sex ratio and sexual orientation in men and women: new tests in two national probability samples”. Archives of Sexual Behavior. 34 (1): 111–6. doi:10.1007/s10508-005-1005-9. PMID15772774.
Blanchard, R; Lippa, RA (aprilie 2007). „Birth order, sibling sex ratio, handedness, and sexual orientation of male and female participants in a BBC internet research project”. Archives of Sexual Behavior. 36 (2): 163–76. doi:10.1007/s10508-006-9159-7. PMID17345165.
„Interaction of fraternal birth order and handedness in the development of male homosexuality”. Hormones and Behavior. 49 (3): 405–14. martie 2006. doi:10.1016/j.yhbeh.2005.09.002. PMID16246335.
Blanchard R (). „Sex ratio of older siblings in heterosexual and homosexual, right-handed and non-right-handed men”. Archives of Sexual Behavior. 37 (6): 977–81. doi:10.1007/s10508-006-9119-2. PMID17186124.
Blanchard, Ray (ianuarie 2008). „Review and theory of handedness, birth order, and homosexuality in men”. Laterality: Asymmetries of Body, Brain and Cognition. 13 (1): 51–70. doi:10.1080/13576500701710432. PMID18050001.
Blanchard R; Ellis L (). „Birth weight, sexual orientation and the sex of preceding siblings”. Journal of Biosocial Science. 33 (3): 451–67. doi:10.1017/S0021932001004515. PMID11446404.
Blanchard R; Zucker KJ; Cavacas A; Allin S; Bradley SJ; Schachter DC (). „Fraternal birth order and birth weight in probably prehomosexual feminine boys”. Hormones and Behavior. 41 (3): 321–7. doi:10.1006/hbeh.2002.1765. PMID11971666.
Bogaert AF (octombrie 1998). „Birth order and sibling sex ratio in homosexual and heterosexual non-white men”. Archives of Sexual Behavior. 27 (5): 467–73. doi:10.1023/A:1018752513198. PMID9795727.
VanderLaan DP; Vasey PL (iunie 2011). „Male sexual orientation in independent Samoa: evidence for fraternal birth order and maternal fecundity effects”. Archives of Sexual Behavior. 40 (3): 495–503. doi:10.1007/s10508-009-9576-5. PMID20039114.
Bogaert AF; Blanchard R; Crosthwait LE (octombrie 2007). „Interaction of birth order, handedness, and sexual orientation in the Kinsey interview data”. Behavioral Neuroscience. 121 (5): 845–53. doi:10.1037/0735-7044.121.5.845. PMID17907817.
Blanchard R; VanderLaan DP (). „Commentary on Kishida and Rahman (2015), Including a Meta-analysis of Relevant Studies on Fraternal Birth Order and Sexual Orientation in Men”. Archives of Sexual Behavior. 44 (5): 1503–9. doi:10.1007/s10508-015-0555-8. PMID25940737.
Bogaert AF (). „Number of older brothers and sexual orientation: New tests and the attraction/behavior distinction in two national probability samples”. Journal of Personality and Social Psychology. 84 (3): 644–52. doi:10.1037/0022-3514.84.3.644. PMID12635923.
Bogaert AF (). „Birth order and sexual orientation in a national probability sample”. Journal of Sex Research. 37 (4): 361–8. doi:10.1080/00224490009552059.
Bogaert AF; Cairney J (). „The interaction of birth order and parental age on sexual orientation: an examination in two samples”. Journal of Biosocial Science. 36 (1): 19–37. doi:10.1017/s0021932004006030. PMID14989529.
Blanchard R (). „Detecting and correcting for family size differences in the study of sexual orientation and fraternal birth order”. Archives of Sexual Behavior. 43 (5): 845–52. doi:10.1007/s10508-013-0245-3. PMID24578105.
Blanchard R (septembrie 2004). „Quantitative and theoretical analyses of the relation between older brothers and homosexuality in men”. Journal of Theoretical Biology. 230 (2): 173–87. doi:10.1016/j.jtbi.2004.04.021. PMID15302549.
Vanderlaan DP; Blanchard R; Zucker KJ; Massuda R; Fontanari AMV; Borba AO; Costa AB; Schneider MA; Mueller A (). „Birth order and androphilic male-to-female transsexualism in Brazil”. Journal of Biosocial Science. 49 (4): 527–535. doi:10.1017/S0021932016000584. PMID27817755.
Xu Y; Zheng Y (). „Birth order and sibling sex ratio in relation to sexual orientation in China”. Social Behavior and Personality. 42 (6): 995–1002. doi:10.2224/sbp.2014.42.6.995.
Xu Y; Zheng Y (). „Fraternal Birth Order, Handedness, and Sexual Orientation in a Chinese Population”. The Journal of Sex Research. 54 (1): 10–18. doi:10.1080/00224499.2015.1104530. PMID26689787.
Kenneth J. Zucker; et al. (). „Birth order and sibling sex ratio in homosexual transsexual South Korean men: Effects of the male-preference stopping rule”. Psychiatry and Clinical Neurosciences. 61 (5): 529–533. doi:10.1111/j.1440-1819.2007.01703.x. PMID17875032.
Blanchard R; Bogaert AF (). „The relation of closed birth intervals to the sex of the preceding child and the sexual orientation of the succeeding child”. Journal of Biosocial Science. 29 (1): 111–8. doi:10.1017/s0021932097001119. PMID9881124.
Blanchard R; Bogaert AF (). „Proportion of homosexual men who owe their sexual orientation to fraternal birth order: An estimate based on two national probability samples”. American Journal of Human Biology. 16 (2): 151–7. doi:10.1002/ajhb.20006. PMID14994314.
Jannini EA; Blanchard R; Camperio-Ciani A; Bancroft J (). „Male homosexuality: nature or culture?”. The Journal of Sexual Medicine. 7 (10): 3245–53. doi:10.1111/j.1743-6109.2010.02024.x. PMID21053405.
Côté K; Blanchard R; Lalumière ML (). „The influence of birth order on birth weight: does the sex of preceding siblings matter?”. Journal of Biosocial Science. 35 (3): 455–62. doi:10.1017/S0021932003004553. PMID12887223.
VanderLaan DP; Blanchard R; Wood H; Garzon LC; Zucker KJ (). „Birth weight and two possible types of maternal effects on male sexual orientation: A clinical study of children and adolescents referred to a Gender Identity Service”. Developmental Psychobiology. 57 (1): 25–34. doi:10.1002/dev.21254. PMID25345970.
Magnus P; Berg K; Bjerkedal T (). „The association of parity and birth weight: testing the sensitization hypothesis”. Early Human Development. 12 (1): 49–54. doi:10.1016/0378-3782(85)90136-7. PMID4064997.
Bailey JM; Zucker KJ (). „Childhood sex-typed behavior and sexual orientation: A conceptual analysis and quantitative review”. Developmental Psychology. 31 (1): 43–55. doi:10.1037/0012-1649.31.1.43.
Bartlett NH; Vasey PL (). „A retrospective study of childhood gender-atypical behavior in Samoan fa'afafine”. Archives of Sexual Behavior. 35 (6): 659–66. doi:10.1007/s10508-006-9055-1. PMID16909317.
Cardoso FL (). „Cultural universals and differences in male homosexuality: The case of a Brazilian fishing village”. Archives of Sexual Behavior. 34 (1): 103–9. doi:10.1007/s10508-005-1004-x. PMID15772773.
Cardoso FL (). „Recalled sex-typed behavior in childhood and sports' preferences in adulthood of heterosexual, bisexual, and homosexual men from Brazil, Turkey, and Thailand”. Archives of Sexual Behavior. 38 (5): 726–36. doi:10.1007/s10508-008-9312-6. PMID18340519.
Whitam FL; Zent M (). „A cross-cultural assessment of early cross-gender behavior and familial factors in male homosexuality”. Archives of Sexual Behavior. 13 (5): 427–39. doi:10.1007/bf01541428. PMID6517684.
Gómez-Gil E; Esteva I; Carrasco R; Almaraz MC; Pasaro E; Salamero M; Guillamon A (). „Birth order and ratio of brothers to sisters in Spanish transsexuals”. Archives of Sexual Behavior. 40 (3): 505–10. doi:10.1007/s10508-010-9614-3. PMID20232130.
Bozkurt A; Bozkurt OH; Sonmez I (). „Birth Order and Sibling Sex Ratio in a Population with High Fertility: Are Turkish Male to Female Transsexuals Different?”. Archives of Sexual Behavior. 44 (5): 1331–7. doi:10.1007/s10508-014-0425-9. PMID25351529.
King M; Green J; Osborn DP; Arkell J; Hetherton J; Pereira E (). „Family size in white gay and heterosexual men”. Archives of Sexual Behavior. 34 (1): 117–22. doi:10.1007/s10508-005-1006-8. PMID15772775.
Schwartz G; Kim RM; Kolundzija AB; Rieger G; Sanders AR (). „Biodemographic and physical correlates of sexual orientation in men”. Archives of Sexual Behavior. 39 (1): 93–109. doi:10.1007/s10508-009-9499-1. PMID19387815.
Green R (iulie 2000). „Birth order and ratio of brothers to sisters in transsexuals”. Psychological Medicine. 30 (4): 789–95. doi:10.1017/S0033291799001932. PMID11037086.
Robinson SJ; Manning JT (). „The ratio of 2nd to 4th digit length and male homosexuality”. Evolution and Human Behavior. 21 (5): 333–345. doi:10.1016/s1090-5138(00)00052-0. PMID11053694.
Blanchard R; Bogaert AF (). „Birth order in homosexual versus heterosexual sex offenders against children, pubescents, and adults”. Archives of Sexual Behavior. 27 (6): 595–603. doi:10.1023/A:1018773117741. PMID9883307.
„Sibship size, sibling sex ratio, birth order, and parental age in homosexual and nonhomosexual gender dysphorics”. The Journal of Nervous and Mental Disease. 180 (1): 40–7. . doi:10.1097/00005053-199201000-00009. PMID1538206.
„Birth order and sibling sex ratio in two samples of Dutch gender-dysphoric homosexual males”. Archives of Sexual Behavior. 25 (5): 495–514. octombrie 1996. doi:10.1007/BF02437544. PMID8899142.
„Birth order in transgendered males from Polynesia: a quantitative study of Samoan fa'afāfine”. Journal of Sex & Marital Therapy. 30 (1): 13–23. . doi:10.1080/00926230490247110. PMID14660290.
Freund K; Blanchard R (). „Feminine gender identity and physical aggressiveness in heterosexual and homosexual pedophiles”. Journal of Sex & Marital Therapy. 13 (1): 25–34. doi:10.1080/00926238708403876. PMID3573049.
Freund K; Scher H; Chan S; Ben-Aron M (). „Experimental analysis of pedophilia”. Behaviour Research and Therapy. 20 (2): 105–12. doi:10.1016/0005-7967(82)90110-3. PMID7073641.
Frisch M; Hviid A (). „Childhood family correlates of heterosexual and homosexual marriages: a national cohort study of two million Danes”. Archives of Sexual Behavior. 35 (5): 533–47. doi:10.1007/s10508-006-9062-2. PMID17039403.
Blanchard R (). „Birth order and sibling sex ratio in homosexual versus heterosexual males and females”. Annual Review of Sex Research. 8: 27–67. PMID10051890.
Bogaert AF; Skorska M (). „Sexual orientation, fraternal birth order, and the maternal immune hypothesis: a review”. Frontiers in Neuroendocrinology. 32 (2): 247–54. doi:10.1016/j.yfrne.2011.02.004. PMID21315103.
Blanchard R; Barbaree HE; Bogaert AF; Dickey R; Klassen P; Kuban ME; Zucker KJ (). „Fraternal birth order and sexual orientation in pedophiles”. Archives of Sexual Behavior. 29 (5): 463–78. doi:10.1023/A:1001943719964. PMID10983250.
„Homosexuality in men and number of older brothers”. American Journal of Psychiatry. 153 (1): 27–31. ianuarie 1996. doi:10.1176/ajp.153.1.27. PMID8540587.
Blanchard R; Bogaert AF (decembrie 1996). „Biodemographic comparisons of homosexual and heterosexual men in the Kinsey interview data”. Archives of Sexual Behavior. 25 (6): 551–79. doi:10.1007/bf02437839. PMID8931880.
„The relation of birth order to sexual orientation in men and women”. Journal of Biosocial Science. 30 (4): 511–9. octombrie 1998. doi:10.1017/S0021932098005112. PMID9818557.
Blanchard R (). „Fraternal Birth Order, Family Size, and Male Homosexuality: Meta-Analysis of Studies Spanning 25 Years”. Archives of Sexual Behavior. 47 (1): 1–15. doi:10.1007/s10508-017-1007-4. PMID28608293.
Blanchard R (septembrie 2001). „Fraternal birth order and the maternal immune hypothesis of male homosexuality”. Hormones and Behavior. 40 (2): 105–14. doi:10.1006/hbeh.2001.1681. PMID11534970.
Rahman Q.; Clarke K.; Morera T. (). „Hair whorl direction and sexual orientation in human males”. Behavioral Neuroscience. 123 (2): 252–256. doi:10.1037/a0014816. PMID19331448.
Bailey JM; Vasey PL; Diamond LM; Breedlove SM; Vilain E; Epprecht M (). „Sexual Orientation, Controversy, and Science”. Psychological Science in the Public Interest. 17 (2): 45–101. doi:10.1177/1529100616637616. PMID27113562.
Bogaert AF (februarie 2005). „Sibling sex ratio and sexual orientation in men and women: new tests in two national probability samples”. Archives of Sexual Behavior. 34 (1): 111–6. doi:10.1007/s10508-005-1005-9. PMID15772774.
Blanchard, R; Lippa, RA (aprilie 2007). „Birth order, sibling sex ratio, handedness, and sexual orientation of male and female participants in a BBC internet research project”. Archives of Sexual Behavior. 36 (2): 163–76. doi:10.1007/s10508-006-9159-7. PMID17345165.
„Interaction of fraternal birth order and handedness in the development of male homosexuality”. Hormones and Behavior. 49 (3): 405–14. martie 2006. doi:10.1016/j.yhbeh.2005.09.002. PMID16246335.
Blanchard R (). „Sex ratio of older siblings in heterosexual and homosexual, right-handed and non-right-handed men”. Archives of Sexual Behavior. 37 (6): 977–81. doi:10.1007/s10508-006-9119-2. PMID17186124.
Blanchard, Ray (ianuarie 2008). „Review and theory of handedness, birth order, and homosexuality in men”. Laterality: Asymmetries of Body, Brain and Cognition. 13 (1): 51–70. doi:10.1080/13576500701710432. PMID18050001.
Blanchard R; Ellis L (). „Birth weight, sexual orientation and the sex of preceding siblings”. Journal of Biosocial Science. 33 (3): 451–67. doi:10.1017/S0021932001004515. PMID11446404.
Blanchard R; Zucker KJ; Cavacas A; Allin S; Bradley SJ; Schachter DC (). „Fraternal birth order and birth weight in probably prehomosexual feminine boys”. Hormones and Behavior. 41 (3): 321–7. doi:10.1006/hbeh.2002.1765. PMID11971666.
Bogaert AF (octombrie 1998). „Birth order and sibling sex ratio in homosexual and heterosexual non-white men”. Archives of Sexual Behavior. 27 (5): 467–73. doi:10.1023/A:1018752513198. PMID9795727.
VanderLaan DP; Vasey PL (iunie 2011). „Male sexual orientation in independent Samoa: evidence for fraternal birth order and maternal fecundity effects”. Archives of Sexual Behavior. 40 (3): 495–503. doi:10.1007/s10508-009-9576-5. PMID20039114.
Bogaert AF; Blanchard R; Crosthwait LE (octombrie 2007). „Interaction of birth order, handedness, and sexual orientation in the Kinsey interview data”. Behavioral Neuroscience. 121 (5): 845–53. doi:10.1037/0735-7044.121.5.845. PMID17907817.
Blanchard R; VanderLaan DP (). „Commentary on Kishida and Rahman (2015), Including a Meta-analysis of Relevant Studies on Fraternal Birth Order and Sexual Orientation in Men”. Archives of Sexual Behavior. 44 (5): 1503–9. doi:10.1007/s10508-015-0555-8. PMID25940737.
Bogaert AF (). „Number of older brothers and sexual orientation: New tests and the attraction/behavior distinction in two national probability samples”. Journal of Personality and Social Psychology. 84 (3): 644–52. doi:10.1037/0022-3514.84.3.644. PMID12635923.
Bogaert AF; Cairney J (). „The interaction of birth order and parental age on sexual orientation: an examination in two samples”. Journal of Biosocial Science. 36 (1): 19–37. doi:10.1017/s0021932004006030. PMID14989529.
Blanchard R (). „Detecting and correcting for family size differences in the study of sexual orientation and fraternal birth order”. Archives of Sexual Behavior. 43 (5): 845–52. doi:10.1007/s10508-013-0245-3. PMID24578105.
Blanchard R (septembrie 2004). „Quantitative and theoretical analyses of the relation between older brothers and homosexuality in men”. Journal of Theoretical Biology. 230 (2): 173–87. doi:10.1016/j.jtbi.2004.04.021. PMID15302549.
Vanderlaan DP; Blanchard R; Zucker KJ; Massuda R; Fontanari AMV; Borba AO; Costa AB; Schneider MA; Mueller A (). „Birth order and androphilic male-to-female transsexualism in Brazil”. Journal of Biosocial Science. 49 (4): 527–535. doi:10.1017/S0021932016000584. PMID27817755.
Jones MB; Blanchard R (). „Birth order and male homosexuality: extension of Slater's index”. Human Biology. 70 (4): 775–87. PMID9686486.
Xu Y; Zheng Y (). „Fraternal Birth Order, Handedness, and Sexual Orientation in a Chinese Population”. The Journal of Sex Research. 54 (1): 10–18. doi:10.1080/00224499.2015.1104530. PMID26689787.
Kenneth J. Zucker; et al. (). „Birth order and sibling sex ratio in homosexual transsexual South Korean men: Effects of the male-preference stopping rule”. Psychiatry and Clinical Neurosciences. 61 (5): 529–533. doi:10.1111/j.1440-1819.2007.01703.x. PMID17875032.
Blanchard R; Bogaert AF (). „The relation of closed birth intervals to the sex of the preceding child and the sexual orientation of the succeeding child”. Journal of Biosocial Science. 29 (1): 111–8. doi:10.1017/s0021932097001119. PMID9881124.
Blanchard R; Bogaert AF (). „Proportion of homosexual men who owe their sexual orientation to fraternal birth order: An estimate based on two national probability samples”. American Journal of Human Biology. 16 (2): 151–7. doi:10.1002/ajhb.20006. PMID14994314.
Jannini EA; Blanchard R; Camperio-Ciani A; Bancroft J (). „Male homosexuality: nature or culture?”. The Journal of Sexual Medicine. 7 (10): 3245–53. doi:10.1111/j.1743-6109.2010.02024.x. PMID21053405.
Côté K; Blanchard R; Lalumière ML (). „The influence of birth order on birth weight: does the sex of preceding siblings matter?”. Journal of Biosocial Science. 35 (3): 455–62. doi:10.1017/S0021932003004553. PMID12887223.
VanderLaan DP; Blanchard R; Wood H; Garzon LC; Zucker KJ (). „Birth weight and two possible types of maternal effects on male sexual orientation: A clinical study of children and adolescents referred to a Gender Identity Service”. Developmental Psychobiology. 57 (1): 25–34. doi:10.1002/dev.21254. PMID25345970.
Magnus P; Berg K; Bjerkedal T (). „The association of parity and birth weight: testing the sensitization hypothesis”. Early Human Development. 12 (1): 49–54. doi:10.1016/0378-3782(85)90136-7. PMID4064997.
Trotnow S; Bregulla K; Flügel K (). „Studies on the birth-weight and the size of the new-born child with reference to the parity of the mother (author's transl)”. Geburtshilfe und Frauenheilkunde (în German). 36 (9): 744–50. PMID976720.Mentenanță CS1: Limbă nerecunoscută (link)
Bartlett NH; Vasey PL (). „A retrospective study of childhood gender-atypical behavior in Samoan fa'afafine”. Archives of Sexual Behavior. 35 (6): 659–66. doi:10.1007/s10508-006-9055-1. PMID16909317.
Cardoso FL (). „Cultural universals and differences in male homosexuality: The case of a Brazilian fishing village”. Archives of Sexual Behavior. 34 (1): 103–9. doi:10.1007/s10508-005-1004-x. PMID15772773.
Cardoso FL (). „Recalled sex-typed behavior in childhood and sports' preferences in adulthood of heterosexual, bisexual, and homosexual men from Brazil, Turkey, and Thailand”. Archives of Sexual Behavior. 38 (5): 726–36. doi:10.1007/s10508-008-9312-6. PMID18340519.
Whitam FL; Zent M (). „A cross-cultural assessment of early cross-gender behavior and familial factors in male homosexuality”. Archives of Sexual Behavior. 13 (5): 427–39. doi:10.1007/bf01541428. PMID6517684.
Gómez-Gil E; Esteva I; Carrasco R; Almaraz MC; Pasaro E; Salamero M; Guillamon A (). „Birth order and ratio of brothers to sisters in Spanish transsexuals”. Archives of Sexual Behavior. 40 (3): 505–10. doi:10.1007/s10508-010-9614-3. PMID20232130.
Bozkurt A; Bozkurt OH; Sonmez I (). „Birth Order and Sibling Sex Ratio in a Population with High Fertility: Are Turkish Male to Female Transsexuals Different?”. Archives of Sexual Behavior. 44 (5): 1331–7. doi:10.1007/s10508-014-0425-9. PMID25351529.
King M; Green J; Osborn DP; Arkell J; Hetherton J; Pereira E (). „Family size in white gay and heterosexual men”. Archives of Sexual Behavior. 34 (1): 117–22. doi:10.1007/s10508-005-1006-8. PMID15772775.
Schwartz G; Kim RM; Kolundzija AB; Rieger G; Sanders AR (). „Biodemographic and physical correlates of sexual orientation in men”. Archives of Sexual Behavior. 39 (1): 93–109. doi:10.1007/s10508-009-9499-1. PMID19387815.
Green R (iulie 2000). „Birth order and ratio of brothers to sisters in transsexuals”. Psychological Medicine. 30 (4): 789–95. doi:10.1017/S0033291799001932. PMID11037086.
Robinson SJ; Manning JT (). „The ratio of 2nd to 4th digit length and male homosexuality”. Evolution and Human Behavior. 21 (5): 333–345. doi:10.1016/s1090-5138(00)00052-0. PMID11053694.
Blanchard R; Bogaert AF (). „Birth order in homosexual versus heterosexual sex offenders against children, pubescents, and adults”. Archives of Sexual Behavior. 27 (6): 595–603. doi:10.1023/A:1018773117741. PMID9883307.
„Sibship size, sibling sex ratio, birth order, and parental age in homosexual and nonhomosexual gender dysphorics”. The Journal of Nervous and Mental Disease. 180 (1): 40–7. . doi:10.1097/00005053-199201000-00009. PMID1538206.
„Birth order and sibling sex ratio in two samples of Dutch gender-dysphoric homosexual males”. Archives of Sexual Behavior. 25 (5): 495–514. octombrie 1996. doi:10.1007/BF02437544. PMID8899142.
„Birth order in transgendered males from Polynesia: a quantitative study of Samoan fa'afāfine”. Journal of Sex & Marital Therapy. 30 (1): 13–23. . doi:10.1080/00926230490247110. PMID14660290.
Freund K; Blanchard R (). „Feminine gender identity and physical aggressiveness in heterosexual and homosexual pedophiles”. Journal of Sex & Marital Therapy. 13 (1): 25–34. doi:10.1080/00926238708403876. PMID3573049.
Freund K; Scher H; Chan S; Ben-Aron M (). „Experimental analysis of pedophilia”. Behaviour Research and Therapy. 20 (2): 105–12. doi:10.1016/0005-7967(82)90110-3. PMID7073641.
Frisch M; Hviid A (). „Childhood family correlates of heterosexual and homosexual marriages: a national cohort study of two million Danes”. Archives of Sexual Behavior. 35 (5): 533–47. doi:10.1007/s10508-006-9062-2. PMID17039403.
DefinitionsArhivat în , la Wayback Machine. from Georgia Department of Public Health. Date: 12/04/2008. Original citation: "Birthweight: Infant's weight recorded at the time of birth"
DefinitionsArhivat în , la Wayback Machine. from Georgia Department of Public Health. Date: 12/04/2008. Original citation: "Birthweight: Infant's weight recorded at the time of birth"