American College of Obstetricians and Gynecologists (ACOG). Management of preterm labor. ACOG Practice Bulletin, number 43, May 2003.
American College of Obstetricians and Gynecologists (ACOG). Use of progesterone to reduce preterm birth. ACOG Committee Opinion, number 291, November 2003.
De Fonseca, E.B., et al. Prophylactic administration of progesterone by vaginal suppository to reduce the incidence of spontaneous preterm birth in women at increased risk: a randomized placebo-controlled double-blind study. American Journal of Obstetrics and Gynecology, volume 188, number 2, February 2003, pages 419-424.
Green, N.S., et al. Research agenda for preterm birth: recommendations from the March of Dimes. American Journal of Obstetrics and Gynecology, volume 193, number 3, September 2005, pages 626-635.
Institute of Medicine (IOM). Preterm Birth: Causes, Consequences, and Prevention. Washington, D.C., National Academies Press, 2006.
Meis, P., et al. Prevention of recurrent preterm delivery by 17 alpha-hydroxyprogesterone caproate. New England Journal of Medicine, volume 348, number 24, June 12, 2003, pages 2379-2385.











