title: Pregnancy block: initation by administered gonadotropin.
mesh_terms: D000818:Animals; D006063:Chorionic Gonadotropin / Q000008:administration & dosage / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D004338:Drug Combinations; D010064:Embryo Implantation / Q000187:drug effects; D005260:Female; D005298:Fertility / Q000187:drug effects*; D005640:Follicle Stimulating Hormone / Q000008:administration & dosage / Q000494:pharmacology*; D006064:Gonadotropins, Equine / Q000008:administration & dosage / Q000494:pharmacology; D007986:Luteinizing Hormone / Q000008:administration & dosage / Q000494:pharmacology*; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D008815:Mice, Inbred Strains; D009929:Organ Size; D011247:Pregnancy; D051381:Rats; D013997:Time Factors; D014599:Uterus / Q000187:drug effects
chemical_list: D006063:Chorionic Gonadotropin; D004338:Drug Combinations; D006064:Gonadotropins, Equine; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone