title: Osteoporosis caution: men at risk.  Part I: causes and diagnosis.
mesh_terms: D015519:Bone Density; D016723:Bone Remodeling / Q000502:physiology*; D006801:Humans; D008297:Male; D010024:Osteoporosis / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology*; D012307:Risk Factors; D012737:Sex Factors; D014481:United States / Q000453:epidemiology