title: [Declining testosterone level. When the head wolf becomes a pack animal].
authors.forename: P
authors.initials: P
authors.lastname: Stiefelhagen
mesh_terms: D000375:Aging / Q000502:physiology*; D006801:Humans; D008297:Male; D012725:Sexual Behavior / Q000502:physiology*; D012917:Social Adjustment; D013739:Testosterone / Q000097:blood*
chemical_list: D013739:Testosterone