APA (7th ed.) Citation

JR, P., WM, C., M, K., NS, G., EM, L., JL, H., . . . K, D. (2005). Estimated effect of 17 alpha-hydroxyprogesterone caproate on preterm birth in the United States. Obstetrics & Gynecology, 105(2), 267. https://doi.org/10.1097/01.aog.0000150560.24297.4f

Chicago Style (17th ed.) Citation

JR, Petrini, Callaghan WM, Klebanoff M, Green NS, Lackritz EM, Howse JL, Schwarz RH, and Damus K. "Estimated Effect of 17 Alpha-hydroxyprogesterone Caproate on Preterm Birth in the United States." Obstetrics & Gynecology 105, no. 2 (2005): 267. https://doi.org/10.1097/01.aog.0000150560.24297.4f.

MLA (9th ed.) Citation

JR, Petrini, et al. "Estimated Effect of 17 Alpha-hydroxyprogesterone Caproate on Preterm Birth in the United States." Obstetrics & Gynecology, vol. 105, no. 2, 2005, p. 267, https://doi.org/10.1097/01.aog.0000150560.24297.4f.