title: Superovulation and multiple birth: in search of kryptonite.
abstract: The contribution of superovulation and ovulation induction to the multiple pregnancy epidemic in the U.S. is substantial. Further understanding of the contributing factors and, most importantly, preventive strategies are needed.
authors.affiliation: Department of Obstetrics and Gynecology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033, USA. rsl1@psu.edu
authors.forename: Richard S
authors.initials: RS
authors.lastname: Legro
mesh_terms: D005260:Female; D006801:Humans; D007246:Infertility / Q000503:physiopathology / Q000628:therapy*; D009099:Multiple Birth Offspring / Q000706:statistics & numerical data; D010062:Ovulation Induction / Q000009:adverse effects*; D011247:Pregnancy; D011272:Pregnancy, Multiple / Q000706:statistics & numerical data; D018570:Risk Assessment; D012307:Risk Factors; D013480:Superovulation; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology