title: Human testicular secretion with increasing age.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D015114:Androstenediol / Q000097:blood; D000735:Androstenedione / Q000097:blood; D002648:Child; D002675:Child, Preschool; D003687:Dehydroepiandrosterone / Q000097:blood; D013196:Dihydrotestosterone / Q000097:blood; D004958:Estradiol / Q000097:blood; D006801:Humans; D006908:Hydroxyprogesterones / Q000097:blood; D008297:Male; D008875:Middle Aged; D013737:Testis / Q000378:metabolism*; D013739:Testosterone / Q000097:blood
chemical_list: D006908:Hydroxyprogesterones; D013196:Dihydrotestosterone; D013739:Testosterone; D000735:Androstenedione; D003687:Dehydroepiandrosterone; D004958:Estradiol; D015114:Androstenediol