title: Morning and evening human Leydig cell responses to hCG.
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D002940:Circadian Rhythm; D006801:Humans; D006908:Hydroxyprogesterones / Q000097:blood*; D007985:Leydig Cells / Q000187:drug effects / Q000502:physiology*; D008297:Male; D013739:Testosterone / Q000097:blood*
chemical_list: D006063:Chorionic Gonadotropin; D006908:Hydroxyprogesterones; D013739:Testosterone