title: The statistical implication of the 'number of replacements' in embryo transfer.
authors.forename: D E
authors.initials: DE
authors.lastname: Walters
mesh_terms: D004624:Embryo Transfer / Q000706:statistics & numerical data*; D005260:Female; D005307:Fertilization in Vitro / Q000706:statistics & numerical data; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple