American College of Obstetricians and Gynecologists. Periviable Birth. Obstetric Care Consensus No. 3. Obstet Gynecol 2015;126:e82-94.

American Medical Association Council on Scientific Affairs. (1992). Induced Termination of Pregnancy Before and After Roe V Wade: Trends in the Mortality and Morbidity of Women. JAMA, 268 (22), 3231-3239.

American Psychological Association, Task Force on Mental Health and Abortion. (2008). Report of the Task Force on Mental Health and Abortion. Washington, DC: Author. Retrieved from

Cunningham, F.G., MacDonald, P.C., Gant, N.F., Leveno, K.J., Gilstrap, L. C., Hankins, G.D.V. & Clark, S.L. (1997). Williams Obstetrics (23rd ed.). Stamford, CT: Appleton & Lange.

Delgado G, Davenport ML. Progesterone use to reverse the effects of mifepristone. Ann Pharmacother. 2012 Dec;46(12):e36.

Grossman D, White K, Harris L, Reeves M, Blumenthal PD, Winikoff B, Grimes DA. Continuing pregnancy after mifepristone and “reversal” of first-trimester medical abortion: a systematic review. Contraception. 2015 Sep;92(3):206-11

Hausknecht, R.U. (1995). Methotrexate and Misoprostol to Terminate Early Pregnancy. New England Journal of Medicine, 333 (9), 537-540.

Lee SJ, Ralston HJP, Drey EA, Partridge JC, Rosen MA. Fetal pain: A systematic multidisciplinary review of the evidence. JAMA 2005; 294: 947-954.

Lowery, CL, Hardman, MP, Manning N, Clancy B, Hall RW, Anand KJS. Neurodevelopmental Changes of Fetal Pain. Seminars in Perinatology. 31(2007) 275-282.

National Institute of Child Health and Human Development Neonatal Research Network (NRN): Extremely Preterm Birth Outcome Data

Salihagić Kadić A, Predojević M. Fetal neurophysiology according to gestational age. Semin Fetal Neonatal Med. 2012 Oct;17(5):256-60.

Van de Velde M, De Buck F. Fetal and maternal analgesia/anesthesia for fetal procedures. Fetal Diagn Ther. 2012;31(4):201-9.