title: Preovulatory requirements of ovarian hormones for the production of the ovulatory luteinizing hormone surge in 4 and 5 day cycles of female rats [proceedings].
mesh_terms: D000818:Animals; D002369:Castration; D004971:Estrus; D005260:Female; D007986:Luteinizing Hormone / Q000097:blood / Q000378:metabolism*; D011247:Pregnancy; D051381:Rats; D013997:Time Factors
chemical_list: D007986:Luteinizing Hormone