title: [Testosterone--sometimes too much, sometimes too little. The man--an eternal patient?].
authors.affiliation: klaus.koch@evibase.de
authors.forename: K
authors.initials: K
authors.lastname: Koch
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011627:Puberty / Q000502:physiology*; D013739:Testosterone / Q000097:blood* / Q000172:deficiency
chemical_list: D013739:Testosterone