Fertility awareness (English Wikipedia)

Dr. Philip B. Imler & David Wilbanks. "The Essential Guide to Getting Pregnant" (PDF). American Pregnancy Association. Archived from the original (PDF) on 2018-06-01. Retrieved 2018-02-16.

archive.org

Weschler, Toni (2002). Taking Charge of Your Fertility (Revised ed.). New York: HarperCollins. pp. 52. ISBN 0-06-093764-5.
O'Reilly, Andrea (6 April 2010). Encyclopedia of Motherhood. SAGE Publications. p. 1056. ISBN 9781452266299. The Roman Catholic church and some Protestant denominations have approved only "natural family planning" methods--including the rhythm method and periodic abstinence.
Yalom, Marilyn (2001). A History of the Wife (First ed.). New York: HarperCollins. pp. 297–8, 307. ISBN 0-06-019338-7.

bmj.com

Urrutia, Rachel Peragallo; Polis, Chelsea B. (2019-07-11). "Fertility awareness based methods for pregnancy prevention". BMJ. 366: l4245. doi:10.1136/bmj.l4245. ISSN 0959-8138. PMID 31296535. S2CID 195893695.

brown.edu

"Fertility Awareness Method". Brown University Health Education Website. Brown University. 2012. Retrieved 2012-12-11.

ccel.org

Saint, Bishop of Hippo Augustine (1887). "Chapter 18.—Of the Symbol of the Breast, and of the Shameful Mysteries of the Manichæans". In Philip Schaff (ed.). A Select Library of the Nicene and Post-Nicene Fathers of the Christian Church, Volume IV. Grand Rapids, MI: WM. B. Eerdmans Publishing Co.

contraceptionjournal.org

Jennings, Victoria H.; Haile, Liya T.; Simmons, Rebecca G.; Fultz, Hanley M.; Shattuck, Dominick (2019-01-01). "Estimating six-cycle efficacy of the Dot app for pregnancy prevention". Contraception. 99 (1): 52–55. doi:10.1016/j.contraception.2018.10.002. ISSN 0010-7824. PMID 30316782.

contraceptivetechnology.com

Hatcher, RA; Trussel J; Stewart F; et al. (2000). Contraceptive Technology (18th ed.). New York: Ardent Media. ISBN 0-9664902-6-6. Archived from the original on 2008-05-31. Retrieved 2008-01-01.

contraceptivetechnology.org

Trussell, James (2011). "Contraceptive efficacy". In Hatcher, Robert A.; Trussell, James; Nelson, Anita L.; Cates, Willard Jr.; Kowal, Deborah; Policar, Michael S. (eds.). Contraceptive technology (20th revised ed.). New York: Ardent Media. pp. 779–863. ISBN 978-1-59708-004-0. ISSN 0091-9721. OCLC 781956734. Table 26–1 = Table 3–2 Percentage of women experiencing an unintended pregnancy during the first year of typical use and the first year of perfect use of contraception, and the percentage continuing use at the end of the first year. United States. Archived 2017-02-15 at the Wayback Machine

doi.org

Dunson, D.B.; Baird, D.D.; Wilcox, A.J.; Weinberg, C.R. (1999). "Day-specific probabilities of clinical pregnancy based on two studies with imperfect measures of ovulation". Human Reproduction. 14 (7): 1835–1839. doi:10.1093/humrep/14.7.1835. ISSN 1460-2350. PMID 10402400.
Urrutia, Rachel Peragallo; Polis, Chelsea B. (2019-07-11). "Fertility awareness based methods for pregnancy prevention". BMJ. 366: l4245. doi:10.1136/bmj.l4245. ISSN 0959-8138. PMID 31296535. S2CID 195893695.
Arévalo M, Jennings V, Sinai I (2002). "Efficacy of a new method of family planning: the Standard Days Method". Contraception. 65 (5): 333–8. doi:10.1016/S0010-7824(02)00288-3. PMID 12057784.
Jennings V, Sinai I (2001). "Further analysis of the theoretical effectiveness of the TwoDay method of family planning". Contraception. 64 (3): 149–53. doi:10.1016/S0010-7824(01)00251-7. PMID 11704093.
Jennings, Victoria H.; Haile, Liya T.; Simmons, Rebecca G.; Fultz, Hanley M.; Shattuck, Dominick (2019-01-01). "Estimating six-cycle efficacy of the Dot app for pregnancy prevention". Contraception. 99 (1): 52–55. doi:10.1016/j.contraception.2018.10.002. ISSN 0010-7824. PMID 30316782.
Fehring, Richard J.; Schneider, Mary (2014-09-01). "Comparison of Abstinence and Coital Frequency Between 2 Natural Methods of Family Planning". Journal of Midwifery & Women's Health. 59 (5): 528–532. doi:10.1111/jmwh.12216.
Manhart, MD; Daune, M; Lind, A; Sinai, I; Golden-Tevald, J (January–February 2013). "Fertility awareness-based methods of family planning: A review of effectiveness for avoiding pregnancy using SORT". Osteopathic Family Physician. 5 (1): 2–8. doi:10.1016/j.osfp.2012.09.002.
Frank-Herrmann P, Heil J, Gnoth C, et al. (2007). "The effectiveness of a fertility awareness based method to avoid pregnancy in relation to a couple's sexual behaviour during the fertile time: a prospective longitudinal study". Hum. Reprod. 22 (5): 1310–9. doi:10.1093/humrep/dem003. PMID 17314078.
James Trussell; Anjana Lalla; Quan Doan; Eileen Reyes; Lionel Pinto; Joseph Gricar (2009). "Cost effectiveness of contraceptives in the United States". Contraception. 79 (1): 5–14. doi:10.1016/j.contraception.2008.08.003. PMC 3638200. PMID 19041435.
Wade ME, McCarthy P, Braunstein GD, et al. (October 1981). "A randomized prospective study of the use-effectiveness of two methods of natural family planning". American Journal of Obstetrics and Gynecology. 141 (4): 368–376. doi:10.1016/0002-9378(81)90597-4. PMID 7025639.
Medina JE, Cifuentes A, Abernathy JR, et al. (December 1980). "Comparative evaluation of two methods of natural family planning in Colombia". American Journal of Obstetrics and Gynecology. 138 (8): 1142–1147. doi:10.1016/S0002-9378(16)32781-8. PMID 7446621.
Marshall J (August 1976). "Cervical-mucus and basal body-temperature method of regulating births: field trial". Lancet. 2 (7980): 282–283. doi:10.1016/S0140-6736(76)90732-7. PMID 59854. S2CID 7653268.
Frank-Herrmann P, Freundl G, Baur S, et al. (December 1991). "Effectiveness and acceptability of the sympto-thermal method of natural family planning in Germany". American Journal of Obstetrics and Gynecology. 165 (6 Pt 2): 2052–2054. doi:10.1016/s0002-9378(11)90580-8. PMID 1755469.
Frank-Herrmann P, Freundl G, Gnoth C, et al. (June–September 1997). "Natural family planning with and without barrier method use in the fertile phase: efficacy in relation to sexual behavior: a German prospective long-term study". Advances in Contraception. 13 (2–3): 179–189. doi:10.1023/A:1006551921219. PMID 9288336. S2CID 24012887.
Howard, M.P.; Stanford, J.B. (1999). "Pregnancy probabilities during use of the Creighton Model Fertility Care System". Archives of Family Medicine. 8 (5): 391–402. doi:10.1001/archfami.8.5.391. PMID 10500511.
Gibbons, Tatjana; Reavey, Jane; Georgiou, Ektoras X; Becker, Christian M (2023-09-15). Cochrane Gynaecology and Fertility Group (ed.). "Timed intercourse for couples trying to conceive". Cochrane Database of Systematic Reviews. 2023 (9). doi:10.1002/14651858.CD011345.pub3. PMC 10501857. PMID 37709293.
Brown E (2022). "Less Like Magic, More Like a Chore: How Sex for the Purpose of Pregnancy Becomes a Third Shift for Women in Heterosexual Couples". Sociological Forum. 37 (2): 465–85. doi:10.1111/socf.12803. S2CID 247329309.

ewtn.com

Moral Questions Affecting Married Life: Addresses given October 29, 1951 to the Italian Catholic Union of midwives Archived December 6, 2010, at the Wayback Machine and November 26, 1951, to the National Congress of the Family Front and the Association of Large Families, National Catholic Welfare Conference, Washington, DC.

familyplanning.net

"About us". Family of the Americas. 2006. Archived from the original on 2007-02-13. Retrieved 2007-03-18.

fda.gov

Health, Center for Devices and Radiological (2019-09-11). "FDA allows marketing of first direct-to-consumer app for contraceptive use to prevent pregnancy". FDA. Retrieved 2019-10-01.

fertaware.com

"About us". Fertility Awareness Center. 2006. Retrieved 2007-03-18.

fertilityfriend.com

"A Brief History of Fertility Charting". FertilityFriend.com. Retrieved 2006-06-18.
"How to Observe and Record Your Fertility Signs". Fertility Friend Handbook. Tamtris Web Services. 2004. Archived from the original on 2005-05-28. Retrieved 2005-06-15.

fertilityuk.org

Clubb EM, Pyper CM, Knight J (1991). "A pilot study on teaching natural family planning (NFP) in general practice". Proceedings of the Conference at Georgetown University, Washington, DC. Archived from the original on 2007-03-23.

holyspiritinteractive.net

Hays, Charlotte. "Solving the Puzzle of Natural Family Planning". Holy Spirit Interactive. Archived from the original on 2012-02-26. Retrieved 2012-02-15.

ihacares.com

"Infertility fact sheet: What causes infertility in women?". womenshealth.gov. U.S. Department of Health and Human Services, Office on Women's Health. Archived from the original on 2012-11-02. Retrieved 2012-12-11. "Some signs that a woman is not ovulating normally include irregular or absent menstrual periods."
"Female Infertility". Adult Health Advisor. 2012. Archived from the original on 2010-12-29.. "A woman who is not ovulating normally may have irregular or missed menstrual periods."
"Is Clomid Right For You?". JustMommies.com. 2007.. "If you have an irregular cycle there is a good chance you are not ovulating normally."

justisse.ca

Justisse Healthworks for Women. (2015). "About Us".

justmommies.com

"Infertility fact sheet: What causes infertility in women?". womenshealth.gov. U.S. Department of Health and Human Services, Office on Women's Health. Archived from the original on 2012-11-02. Retrieved 2012-12-11. "Some signs that a woman is not ovulating normally include irregular or absent menstrual periods."
"Female Infertility". Adult Health Advisor. 2012. Archived from the original on 2010-12-29.. "A woman who is not ovulating normally may have irregular or missed menstrual periods."
"Is Clomid Right For You?". JustMommies.com. 2007.. "If you have an irregular cycle there is a good chance you are not ovulating normally."

marquette.edu

"Institute for Natural Family Planning Model - Marquette University". www.marquette.edu. Retrieved 2022-10-11.

epublications.marquette.edu

Fehring, Richard J.; Schneider, Mary (2014-09-01). "Comparison of Abstinence and Coital Frequency Between 2 Natural Methods of Family Planning". Journal of Midwifery & Women's Health. 59 (5): 528–532. doi:10.1111/jmwh.12216.

mayoclinic.org

"How to get pregnant". Mayo Clinic. 2016-11-02. Retrieved 2018-02-16.

nice.org.uk

"Fertility problems: assessment and treatment, Clinical guideline [CG156]". National Institute for Health and Care Excellence. Retrieved 2018-02-16. Published date: February 2013. Last updated: September 2017

nih.gov

pubmed.ncbi.nlm.nih.gov

Dunson, D.B.; Baird, D.D.; Wilcox, A.J.; Weinberg, C.R. (1999). "Day-specific probabilities of clinical pregnancy based on two studies with imperfect measures of ovulation". Human Reproduction. 14 (7): 1835–1839. doi:10.1093/humrep/14.7.1835. ISSN 1460-2350. PMID 10402400.
Urrutia, Rachel Peragallo; Polis, Chelsea B. (2019-07-11). "Fertility awareness based methods for pregnancy prevention". BMJ. 366: l4245. doi:10.1136/bmj.l4245. ISSN 0959-8138. PMID 31296535. S2CID 195893695.
Arévalo M, Jennings V, Sinai I (2002). "Efficacy of a new method of family planning: the Standard Days Method". Contraception. 65 (5): 333–8. doi:10.1016/S0010-7824(02)00288-3. PMID 12057784.
Jennings V, Sinai I (2001). "Further analysis of the theoretical effectiveness of the TwoDay method of family planning". Contraception. 64 (3): 149–53. doi:10.1016/S0010-7824(01)00251-7. PMID 11704093.
Jennings, Victoria H.; Haile, Liya T.; Simmons, Rebecca G.; Fultz, Hanley M.; Shattuck, Dominick (2019-01-01). "Estimating six-cycle efficacy of the Dot app for pregnancy prevention". Contraception. 99 (1): 52–55. doi:10.1016/j.contraception.2018.10.002. ISSN 0010-7824. PMID 30316782.
Frank-Herrmann P, Heil J, Gnoth C, et al. (2007). "The effectiveness of a fertility awareness based method to avoid pregnancy in relation to a couple's sexual behaviour during the fertile time: a prospective longitudinal study". Hum. Reprod. 22 (5): 1310–9. doi:10.1093/humrep/dem003. PMID 17314078.
James Trussell; Anjana Lalla; Quan Doan; Eileen Reyes; Lionel Pinto; Joseph Gricar (2009). "Cost effectiveness of contraceptives in the United States". Contraception. 79 (1): 5–14. doi:10.1016/j.contraception.2008.08.003. PMC 3638200. PMID 19041435.
Wade ME, McCarthy P, Braunstein GD, et al. (October 1981). "A randomized prospective study of the use-effectiveness of two methods of natural family planning". American Journal of Obstetrics and Gynecology. 141 (4): 368–376. doi:10.1016/0002-9378(81)90597-4. PMID 7025639.
Medina JE, Cifuentes A, Abernathy JR, et al. (December 1980). "Comparative evaluation of two methods of natural family planning in Colombia". American Journal of Obstetrics and Gynecology. 138 (8): 1142–1147. doi:10.1016/S0002-9378(16)32781-8. PMID 7446621.
Marshall J (August 1976). "Cervical-mucus and basal body-temperature method of regulating births: field trial". Lancet. 2 (7980): 282–283. doi:10.1016/S0140-6736(76)90732-7. PMID 59854. S2CID 7653268.
Frank-Herrmann P, Freundl G, Baur S, et al. (December 1991). "Effectiveness and acceptability of the sympto-thermal method of natural family planning in Germany". American Journal of Obstetrics and Gynecology. 165 (6 Pt 2): 2052–2054. doi:10.1016/s0002-9378(11)90580-8. PMID 1755469.
Frank-Herrmann P, Freundl G, Gnoth C, et al. (June–September 1997). "Natural family planning with and without barrier method use in the fertile phase: efficacy in relation to sexual behavior: a German prospective long-term study". Advances in Contraception. 13 (2–3): 179–189. doi:10.1023/A:1006551921219. PMID 9288336. S2CID 24012887.
Ecochard, R.; Pinguet, F.; Ecochard, I.; De Gouvello, R.; Guy, M.; Huy, F. (1998). "Analysis of natural family planning failures. In 7007 cycles of use". Contraception, Fertilité, Sexualité. 26 (4): 291–6. PMID 9622963.
Hilgers, T.W.; Stanford, J.B. (1998). "Creighton Model NaProEducation Technology for avoiding pregnancy. Use effectiveness". Journal of Reproductive Medicine. 43 (6): 495–502. PMID 9653695.
Howard, M.P.; Stanford, J.B. (1999). "Pregnancy probabilities during use of the Creighton Model Fertility Care System". Archives of Family Medicine. 8 (5): 391–402. doi:10.1001/archfami.8.5.391. PMID 10500511.
Gibbons, Tatjana; Reavey, Jane; Georgiou, Ektoras X; Becker, Christian M (2023-09-15). Cochrane Gynaecology and Fertility Group (ed.). "Timed intercourse for couples trying to conceive". Cochrane Database of Systematic Reviews. 2023 (9). doi:10.1002/14651858.CD011345.pub3. PMC 10501857. PMID 37709293.

ncbi.nlm.nih.gov

James Trussell; Anjana Lalla; Quan Doan; Eileen Reyes; Lionel Pinto; Joseph Gricar (2009). "Cost effectiveness of contraceptives in the United States". Contraception. 79 (1): 5–14. doi:10.1016/j.contraception.2008.08.003. PMC 3638200. PMID 19041435.
Gibbons, Tatjana; Reavey, Jane; Georgiou, Ektoras X; Becker, Christian M (2023-09-15). Cochrane Gynaecology and Fertility Group (ed.). "Timed intercourse for couples trying to conceive". Cochrane Database of Systematic Reviews. 2023 (9). doi:10.1002/14651858.CD011345.pub3. PMC 10501857. PMID 37709293.

popepaulvi.com

"About the Institute". Pope Paul VI Institute. 2006. Archived from the original on 2012-03-12. Retrieved 2012-02-21.

semanticscholar.org

api.semanticscholar.org

Urrutia, Rachel Peragallo; Polis, Chelsea B. (2019-07-11). "Fertility awareness based methods for pregnancy prevention". BMJ. 366: l4245. doi:10.1136/bmj.l4245. ISSN 0959-8138. PMID 31296535. S2CID 195893695.
Marshall J (August 1976). "Cervical-mucus and basal body-temperature method of regulating births: field trial". Lancet. 2 (7980): 282–283. doi:10.1016/S0140-6736(76)90732-7. PMID 59854. S2CID 7653268.
Frank-Herrmann P, Freundl G, Gnoth C, et al. (June–September 1997). "Natural family planning with and without barrier method use in the fertile phase: efficacy in relation to sexual behavior: a German prospective long-term study". Advances in Contraception. 13 (2–3): 179–189. doi:10.1023/A:1006551921219. PMID 9288336. S2CID 24012887.
Brown E (2022). "Less Like Magic, More Like a Chore: How Sex for the Purpose of Pregnancy Becomes a Third Shift for Women in Heterosexual Couples". Sociological Forum. 37 (2): 465–85. doi:10.1111/socf.12803. S2CID 247329309.

web.archive.org

Trussell, James (2011). "Contraceptive efficacy". In Hatcher, Robert A.; Trussell, James; Nelson, Anita L.; Cates, Willard Jr.; Kowal, Deborah; Policar, Michael S. (eds.). Contraceptive technology (20th revised ed.). New York: Ardent Media. pp. 779–863. ISBN 978-1-59708-004-0. ISSN 0091-9721. OCLC 781956734. Table 26–1 = Table 3–2 Percentage of women experiencing an unintended pregnancy during the first year of typical use and the first year of perfect use of contraception, and the percentage continuing use at the end of the first year. United States. Archived 2017-02-15 at the Wayback Machine
Medical Eligibility Criteria for Contraceptive Use:Fertility awareness-based methods. Fourth edition. World Health Organization. 2010. ISBN 978-9-2415-6388-8. Archived from the original on 2012-11-02. Retrieved 2012-12-11.
Hays, Charlotte. "Solving the Puzzle of Natural Family Planning". Holy Spirit Interactive. Archived from the original on 2012-02-26. Retrieved 2012-02-15.
Moral Questions Affecting Married Life: Addresses given October 29, 1951 to the Italian Catholic Union of midwives Archived December 6, 2010, at the Wayback Machine and November 26, 1951, to the National Congress of the Family Front and the Association of Large Families, National Catholic Welfare Conference, Washington, DC.
Billings, John (March 2002). "THE QUEST — leading to the discovery of the Billings Ovulation Method". Bulletin of Ovulation Method Research and Reference Centre of Australia. 29 (1): 18–28. Archived from the original on 2007-02-19. Retrieved 2007-03-18.
"About us". Family of the Americas. 2006. Archived from the original on 2007-02-13. Retrieved 2007-03-18.
"About the Institute". Pope Paul VI Institute. 2006. Archived from the original on 2012-03-12. Retrieved 2012-02-21.
James B. Brown (2005). "Physiology of Ovulation". Ovarian Activity and Fertility and the Billings Ovulation Method. Ovulation Method Research and Reference Centre of Australia. Archived from the original on 2005-12-24.
"How to Observe and Record Your Fertility Signs". Fertility Friend Handbook. Tamtris Web Services. 2004. Archived from the original on 2005-05-28. Retrieved 2005-06-15.
Hatcher, RA; Trussel J; Stewart F; et al. (2000). Contraceptive Technology (18th ed.). New York: Ardent Media. ISBN 0-9664902-6-6. Archived from the original on 2008-05-31. Retrieved 2008-01-01.
Evaluation of the Effectiveness of a Natural Fertility Regulation Programme in China Archived 2007-04-27 at the Wayback Machine: Shao-Zhen Qian, et al. Reproduction and Contraception (English edition), in press 2000.
Clubb EM, Pyper CM, Knight J (1991). "A pilot study on teaching natural family planning (NFP) in general practice". Proceedings of the Conference at Georgetown University, Washington, DC. Archived from the original on 2007-03-23.
Dr. Philip B. Imler & David Wilbanks. "The Essential Guide to Getting Pregnant" (PDF). American Pregnancy Association. Archived from the original (PDF) on 2018-06-01. Retrieved 2018-02-16.
"Infertility fact sheet: What causes infertility in women?". womenshealth.gov. U.S. Department of Health and Human Services, Office on Women's Health. Archived from the original on 2012-11-02. Retrieved 2012-12-11. "Some signs that a woman is not ovulating normally include irregular or absent menstrual periods."
"Female Infertility". Adult Health Advisor. 2012. Archived from the original on 2010-12-29.. "A woman who is not ovulating normally may have irregular or missed menstrual periods."
"Is Clomid Right For You?". JustMommies.com. 2007.. "If you have an irregular cycle there is a good chance you are not ovulating normally."

who.int

Medical Eligibility Criteria for Contraceptive Use:Fertility awareness-based methods. Fourth edition. World Health Organization. 2010. ISBN 978-9-2415-6388-8. Archived from the original on 2012-11-02. Retrieved 2012-12-11.

wiley.com

doi.wiley.com

Gibbons, Tatjana; Reavey, Jane; Georgiou, Ektoras X; Becker, Christian M (2023-09-15). Cochrane Gynaecology and Fertility Group (ed.). "Timed intercourse for couples trying to conceive". Cochrane Database of Systematic Reviews. 2023 (9). doi:10.1002/14651858.CD011345.pub3. PMC 10501857. PMID 37709293.

womenshealth.gov

"Infertility fact sheet: What causes infertility in women?". womenshealth.gov. U.S. Department of Health and Human Services, Office on Women's Health. Archived from the original on 2012-11-02. Retrieved 2012-12-11. "Some signs that a woman is not ovulating normally include irregular or absent menstrual periods."
"Female Infertility". Adult Health Advisor. 2012. Archived from the original on 2010-12-29.. "A woman who is not ovulating normally may have irregular or missed menstrual periods."
"Is Clomid Right For You?". JustMommies.com. 2007.. "If you have an irregular cycle there is a good chance you are not ovulating normally."

woomb.org

Billings, John (March 2002). "THE QUEST — leading to the discovery of the Billings Ovulation Method". Bulletin of Ovulation Method Research and Reference Centre of Australia. 29 (1): 18–28. Archived from the original on 2007-02-19. Retrieved 2007-03-18.
James B. Brown (2005). "Physiology of Ovulation". Ovarian Activity and Fertility and the Billings Ovulation Method. Ovulation Method Research and Reference Centre of Australia. Archived from the original on 2005-12-24.
Evaluation of the Effectiveness of a Natural Fertility Regulation Programme in China Archived 2007-04-27 at the Wayback Machine: Shao-Zhen Qian, et al. Reproduction and Contraception (English edition), in press 2000.

worldcat.org

search.worldcat.org

Dunson, D.B.; Baird, D.D.; Wilcox, A.J.; Weinberg, C.R. (1999). "Day-specific probabilities of clinical pregnancy based on two studies with imperfect measures of ovulation". Human Reproduction. 14 (7): 1835–1839. doi:10.1093/humrep/14.7.1835. ISSN 1460-2350. PMID 10402400.
Trussell, James (2011). "Contraceptive efficacy". In Hatcher, Robert A.; Trussell, James; Nelson, Anita L.; Cates, Willard Jr.; Kowal, Deborah; Policar, Michael S. (eds.). Contraceptive technology (20th revised ed.). New York: Ardent Media. pp. 779–863. ISBN 978-1-59708-004-0. ISSN 0091-9721. OCLC 781956734. Table 26–1 = Table 3–2 Percentage of women experiencing an unintended pregnancy during the first year of typical use and the first year of perfect use of contraception, and the percentage continuing use at the end of the first year. United States. Archived 2017-02-15 at the Wayback Machine
Urrutia, Rachel Peragallo; Polis, Chelsea B. (2019-07-11). "Fertility awareness based methods for pregnancy prevention". BMJ. 366: l4245. doi:10.1136/bmj.l4245. ISSN 0959-8138. PMID 31296535. S2CID 195893695.
Jennings, Victoria H.; Haile, Liya T.; Simmons, Rebecca G.; Fultz, Hanley M.; Shattuck, Dominick (2019-01-01). "Estimating six-cycle efficacy of the Dot app for pregnancy prevention". Contraception. 99 (1): 52–55. doi:10.1016/j.contraception.2018.10.002. ISSN 0010-7824. PMID 30316782.