title: Effect of implanted progesterone pellets on plasma progestogen concentrations in anoestrous pony mares.
mesh_terms: D000780:Anestrus / Q000187:drug effects*; D000818:Animals; D004343:Drug Implants; D004971:Estrus / Q000187:drug effects*; D005260:Female; D006736:Horses / Q000378:metabolism* / Q000502:physiology; D008297:Male; D009640:Norethindrone / Q000031:analogs & derivatives* / Q000378:metabolism; D000077563:Norethindrone Acetate; D010053:Ovary / Q000187:drug effects; D011247:Pregnancy; D011374:Progesterone / Q000008:administration & dosage*
chemical_list: D004343:Drug Implants; D011374:Progesterone; D000077563:Norethindrone Acetate; D009640:Norethindrone