title: Characterization of the LH surge in middle-aged female rats.
mesh_terms: D000375:Aging; D000818:Animals; D004971:Estrus; D005260:Female; D007986:Luteinizing Hormone / Q000097:blood*; D011247:Pregnancy; D011359:Proestrus; D051381:Rats
chemical_list: D007986:Luteinizing Hormone