Mirsky, A. F.; Delisi, L. E.; Buchsbaum, M. S.; Quinn, O. W.; Schwerdt, P.; Siever, L. J.; Mann, L.; Weingartner, H.; Zec, R.; Sostek, A. (1984). "The Genain Quadruplets: Psychological studies". Psychiatry Research. 13 (1): 77–93. doi:10.1016/0165-1781(84)90120-3. PMID6151205. S2CID43234604.
Beemsterboer SN, Homburg R, Gorter NA, Schats R, Hompes PG, Lambalk CB (2006). "The paradox of declining fertility but increasing twinning rates with advancing maternal age". Hum. Reprod. 21 (6): 1531–2. doi:10.1093/humrep/del009. PMID16497698.
Alexander GR, Kogan M, Martin J, Papiernik E (March 1998). "What are the fetal growth patterns of singletons, twins, and triplets in the United States?". Clin Obstet Gynecol. 41 (1): 114–25. doi:10.1097/00003081-199803000-00017. PMID9504230. Note: This study was done by looking at the 1991–1995 U.S. Natality Files, which were received from the National Center for Health Statistics
Pharoah PO, Cooke T (1996). "Cerebral palsy and multiple births". Arch. Dis. Child. Fetal Neonatal Ed. 75 (3): F174–7. doi:10.1136/fn.75.3.f174. PMC1061194. PMID8976682.Note: Study looked at the registered births of babies born with cerebral palsy during the periods of 1982-1989 in the counties of Merseyside and Cheshire.
Elsner CW, Tucker MJ, Sweitzer CL, Brockman WD, Morton PC, Wright G, Toledo AA (1997). "Multiple pregnancy rate and embryo number transferred during in vitro fertilization". Am. J. Obstet. Gynecol. 177 (2): 350–355, discussion 355–357. doi:10.1016/S0002-9378(97)70197-2. PMID9290450.
McCall, CA; Grimes, DA; Lyerly, AD (June 2013). ""Therapeutic" bed rest in pregnancy: unethical and unsupported by data". Obstetrics and Gynecology. 121 (6): 1305–8. doi:10.1097/aog.0b013e318293f12f. PMID23812466. S2CID9069311.
Kwok, Man Ki; Yeung, Shiu Lun Au; Leung, Gabriel M.; Mary Schooling, C. (2016-03-01). "Birth weight and adult cardiovascular risk factors using multiple birth status as an instrumental variable in the 1958 British Birth Cohort". Preventive Medicine. 84: 69–75. doi:10.1016/j.ypmed.2015.12.016. ISSN0091-7435. PMID26748345.
Porta, Roser; Capdevila, Eva; Botet, Francesc; Verd, Sergi; Ginovart, Gemma; Moliner, Elisenda; Nicolàs, Marta; Rios, Jose (2017-09-22). "Morbidity and mortality of very low birth weight multiples compared with singletons". The Journal of Maternal-Fetal & Neonatal Medicine. 32 (3): 389–397. doi:10.1080/14767058.2017.1379073. ISSN1476-7058. PMID28936899. S2CID26741575.
Rao, Radhika (August 2015). "Selective Reduction: "A Soft Cover for Hard Choices" or Another Name for Abortion?". The Journal of Law, Medicine & Ethics. 43 (2): 196–205. doi:10.1111/jlme.12233. ISSN1073-1105. PMID26242939. S2CID40482252.
Le, Julia (26 July 2011). "Triplets set world record". Mississauga News. Mississauga ON. Retrieved 1 September 2021. Note: Record was not confirmed until July 2011
Gill, Prabhcharan; Lende, Michelle N.; Van Hook, James W. (2023), "Twin Births", StatPearls, Treasure Island (FL): StatPearls Publishing, PMID29630252, retrieved 2023-12-10
Mirsky, A. F.; Delisi, L. E.; Buchsbaum, M. S.; Quinn, O. W.; Schwerdt, P.; Siever, L. J.; Mann, L.; Weingartner, H.; Zec, R.; Sostek, A. (1984). "The Genain Quadruplets: Psychological studies". Psychiatry Research. 13 (1): 77–93. doi:10.1016/0165-1781(84)90120-3. PMID6151205. S2CID43234604.
Beemsterboer SN, Homburg R, Gorter NA, Schats R, Hompes PG, Lambalk CB (2006). "The paradox of declining fertility but increasing twinning rates with advancing maternal age". Hum. Reprod. 21 (6): 1531–2. doi:10.1093/humrep/del009. PMID16497698.
Alexander GR, Kogan M, Martin J, Papiernik E (March 1998). "What are the fetal growth patterns of singletons, twins, and triplets in the United States?". Clin Obstet Gynecol. 41 (1): 114–25. doi:10.1097/00003081-199803000-00017. PMID9504230. Note: This study was done by looking at the 1991–1995 U.S. Natality Files, which were received from the National Center for Health Statistics
Pharoah PO, Cooke T (1996). "Cerebral palsy and multiple births". Arch. Dis. Child. Fetal Neonatal Ed. 75 (3): F174–7. doi:10.1136/fn.75.3.f174. PMC1061194. PMID8976682.Note: Study looked at the registered births of babies born with cerebral palsy during the periods of 1982-1989 in the counties of Merseyside and Cheshire.
Elsner CW, Tucker MJ, Sweitzer CL, Brockman WD, Morton PC, Wright G, Toledo AA (1997). "Multiple pregnancy rate and embryo number transferred during in vitro fertilization". Am. J. Obstet. Gynecol. 177 (2): 350–355, discussion 355–357. doi:10.1016/S0002-9378(97)70197-2. PMID9290450.
McCall, CA; Grimes, DA; Lyerly, AD (June 2013). ""Therapeutic" bed rest in pregnancy: unethical and unsupported by data". Obstetrics and Gynecology. 121 (6): 1305–8. doi:10.1097/aog.0b013e318293f12f. PMID23812466. S2CID9069311.
Kwok, Man Ki; Yeung, Shiu Lun Au; Leung, Gabriel M.; Mary Schooling, C. (2016-03-01). "Birth weight and adult cardiovascular risk factors using multiple birth status as an instrumental variable in the 1958 British Birth Cohort". Preventive Medicine. 84: 69–75. doi:10.1016/j.ypmed.2015.12.016. ISSN0091-7435. PMID26748345.
Porta, Roser; Capdevila, Eva; Botet, Francesc; Verd, Sergi; Ginovart, Gemma; Moliner, Elisenda; Nicolàs, Marta; Rios, Jose (2017-09-22). "Morbidity and mortality of very low birth weight multiples compared with singletons". The Journal of Maternal-Fetal & Neonatal Medicine. 32 (3): 389–397. doi:10.1080/14767058.2017.1379073. ISSN1476-7058. PMID28936899. S2CID26741575.
Rao, Radhika (August 2015). "Selective Reduction: "A Soft Cover for Hard Choices" or Another Name for Abortion?". The Journal of Law, Medicine & Ethics. 43 (2): 196–205. doi:10.1111/jlme.12233. ISSN1073-1105. PMID26242939. S2CID40482252.
Pharoah PO, Cooke T (1996). "Cerebral palsy and multiple births". Arch. Dis. Child. Fetal Neonatal Ed. 75 (3): F174–7. doi:10.1136/fn.75.3.f174. PMC1061194. PMID8976682.Note: Study looked at the registered births of babies born with cerebral palsy during the periods of 1982-1989 in the counties of Merseyside and Cheshire.
McCall, CA; Grimes, DA; Lyerly, AD (June 2013). ""Therapeutic" bed rest in pregnancy: unethical and unsupported by data". Obstetrics and Gynecology. 121 (6): 1305–8. doi:10.1097/aog.0b013e318293f12f. PMID23812466. S2CID9069311.
Kaufman GE, Malone FD, Harvey-Wilkes KB, Chelmow D, Penzias AS, D'Alton ME (1998). "Neonatal morbidity and mortality associated with triplet pregnancy". Obstet Gynecol. 91 (3): 342–8. doi:10.1016/s0029-7844(97)00686-8. PMID9491857. S2CID12722478.
Sigalos, George Α.; Triantafyllidou, Olga; Vlahos, Nikos F. (2016-09-15). "Novel embryo selection techniques to increase embryo implantation in IVF attempts". Archives of Gynecology and Obstetrics. 294 (6): 1117–1124. doi:10.1007/s00404-016-4196-5. ISSN0932-0067. PMID27628754. S2CID38282141.
Porta, Roser; Capdevila, Eva; Botet, Francesc; Verd, Sergi; Ginovart, Gemma; Moliner, Elisenda; Nicolàs, Marta; Rios, Jose (2017-09-22). "Morbidity and mortality of very low birth weight multiples compared with singletons". The Journal of Maternal-Fetal & Neonatal Medicine. 32 (3): 389–397. doi:10.1080/14767058.2017.1379073. ISSN1476-7058. PMID28936899. S2CID26741575.
Rao, Radhika (August 2015). "Selective Reduction: "A Soft Cover for Hard Choices" or Another Name for Abortion?". The Journal of Law, Medicine & Ethics. 43 (2): 196–205. doi:10.1111/jlme.12233. ISSN1073-1105. PMID26242939. S2CID40482252.
Kwok, Man Ki; Yeung, Shiu Lun Au; Leung, Gabriel M.; Mary Schooling, C. (2016-03-01). "Birth weight and adult cardiovascular risk factors using multiple birth status as an instrumental variable in the 1958 British Birth Cohort". Preventive Medicine. 84: 69–75. doi:10.1016/j.ypmed.2015.12.016. ISSN0091-7435. PMID26748345.
Sigalos, George Α.; Triantafyllidou, Olga; Vlahos, Nikos F. (2016-09-15). "Novel embryo selection techniques to increase embryo implantation in IVF attempts". Archives of Gynecology and Obstetrics. 294 (6): 1117–1124. doi:10.1007/s00404-016-4196-5. ISSN0932-0067. PMID27628754. S2CID38282141.
Porta, Roser; Capdevila, Eva; Botet, Francesc; Verd, Sergi; Ginovart, Gemma; Moliner, Elisenda; Nicolàs, Marta; Rios, Jose (2017-09-22). "Morbidity and mortality of very low birth weight multiples compared with singletons". The Journal of Maternal-Fetal & Neonatal Medicine. 32 (3): 389–397. doi:10.1080/14767058.2017.1379073. ISSN1476-7058. PMID28936899. S2CID26741575.
Rao, Radhika (August 2015). "Selective Reduction: "A Soft Cover for Hard Choices" or Another Name for Abortion?". The Journal of Law, Medicine & Ethics. 43 (2): 196–205. doi:10.1111/jlme.12233. ISSN1073-1105. PMID26242939. S2CID40482252.