title: Electron microscopic study of the overlapping effect of thyrotropin and gonadotropins on the Leydig cells of 15-day old chick embryo.
mesh_terms: D000818:Animals; D002642:Chick Embryo / Q000187:drug effects*; D006062:Gonadotropins / Q000494:pharmacology*; D007985:Leydig Cells / Q000187:drug effects* / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D013972:Thyrotropin / Q000494:pharmacology*
chemical_list: D006062:Gonadotropins; D013972:Thyrotropin