title: Always an important question: the experimental unit--"patients or cycles"?
authors.forename: Paul G
authors.initials: PG
authors.lastname: McDonough
mesh_terms: D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007247:Infertility, Female / Q000628:therapy*; D018579:Patient Selection; D011247:Pregnancy; D016032:Randomized Controlled Trials as Topic / Q000379:methods* / Q000592:standards*