Efficacy, Safety, and Tolerability of a Monophasic Oral Contraceptive Containing Nomegestrol Acetate and 17β-Estradiol: A Randomized Controlled Trial

Westhoff, Carolyn; Kaunitz, Andrew M.; Korver, Tjeerd; More

Obstetrics & Gynecology . 119(5):989-999, May 2012.