CME

CME


The Evolution of Estrogen in Contraception—From E1 to E4

January 26, 2021

Host: Lee P. Shulman, MD, FACMG, FACOG

Guest: Anita L. Nelson, MD

Although oral contraceptives were first introduced approximately 60 years ago, we continue our efforts today to identify new estrogens and progestins that improve cycle control while