title: Inappropriate use of cohort studies to formulate treatment guidelines.
authors.affiliation: Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada. dayas@mcmaster.ca
authors.forename: Salim
authors.initials: S
authors.lastname: Daya
mesh_terms: D006063:Chorionic Gonadotropin / Q000008:administration & dosage; D015331:Cohort Studies; D005260:Female; D006801:Humans; D010062:Ovulation Induction / Q000009:adverse effects* / Q000379:methods; D017410:Practice Guidelines as Topic; D011247:Pregnancy; D011272:Pregnancy, Multiple
chemical_list: D006063:Chorionic Gonadotropin