title: The empirical and ethical questions of induced versus natural losses of preimplantation embryos.
authors: Rafael T
authors: RT
authors: Mikolajczyk
authors: Joseph B
authors: JB
authors: Stanford
mesh_terms: D026688:Bioethical Issues; D003281:Contraceptives, Postcoital / Q000494:pharmacology*; D010064:Embryo Implantation / Q000187:drug effects*; D020964:Embryo Loss; D005260:Female; D005306:Fertilization / Q000187:drug effects; D006801:Humans; D010060:Ovulation / Q000187:drug effects
chemical_list: D003281:Contraceptives, Postcoital