[Clinical study of gynecomastia--an etiological study].
D000224:Addison Disease / Q000150:complications; D000328:Adult; D000368:Aged; D006177:Gynecomastia / Q000209:etiology*; D006801:Humans; D008107:Liver Diseases / Q000150:complications; D008297:Male; D008659:Metabolic Diseases / Q000150:complications; D008875:Middle Aged