title: The nature of the pituitary gonadotropins and their role in ovulation in a urodele amphibian (Ambystoma tigrinum).
mesh_terms: D000557:Ambystoma / Q000502:physiology*; D000818:Animals; D005075:Biological Evolution; D004305:Dose-Response Relationship, Drug; D005260:Female; D005640:Follicle Stimulating Hormone / Q000494:pharmacology; D006065:Gonadotropins, Pituitary / Q000302:isolation & purification / Q000494:pharmacology*; D007986:Luteinizing Hormone / Q000494:pharmacology; D010060:Ovulation / Q000187:drug effects*
chemical_list: D006065:Gonadotropins, Pituitary; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone