title: The effect of prostaglandin F2 alpha during various stages of the oestrous cycle of beef heifers.
mesh_terms: D000818:Animals; D002417:Cattle; D004967:Estrogens / Q000097:blood*; D004971:Estrus / Q000187:drug effects*; D005260:Female; D007267:Injections; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D011453:Prostaglandins / Q000008:administration & dosage / Q000494:pharmacology*; D011863:Radioimmunoassay; D013997:Time Factors; D014316:Tritium; D014599:Uterus
chemical_list: D004967:Estrogens; D011453:Prostaglandins; D014316:Tritium; D011374:Progesterone