Aspects of male hypogonadism.
D000015:Abnormalities, Multiple / Q000175:diagnosis*; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D012734:Disorders of Sex Development / Q000175:diagnosis*; D006801:Humans; D007006:Hypogonadism / Q000175:diagnosis* / Q000235:genetics; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011628:Puberty, Delayed / Q000175:diagnosis