VC, L., OS, T., EH, N., WS, Y., & PC, H. (2011). A prospective double-blinded, randomized, placebo-controlled trial on the use of letrozole pretreatment with misoprostol for second-trimester medical abortion. Contraception, 84(6), 628.
Chicago Style (17th ed.) CitationVC, Lee, Tang OS, Ng EH, Yeung WS, and Ho PC. "A Prospective Double-blinded, Randomized, Placebo-controlled Trial on the Use of Letrozole Pretreatment with Misoprostol for Second-trimester Medical Abortion." Contraception 84, no. 6 (2011): 628.
MLA (9th ed.) CitationVC, Lee, et al. "A Prospective Double-blinded, Randomized, Placebo-controlled Trial on the Use of Letrozole Pretreatment with Misoprostol for Second-trimester Medical Abortion." Contraception, vol. 84, no. 6, 2011, p. 628.