title: Unusual endocrine and somatic phenotypic abnormalities in a 14-year-old boy with classic Klinefelter syndrome (47,XXY).
authors: L
authors: L
authors: Curtò
authors: M F
authors: MF
authors: Messina
authors: F
authors: F
authors: Trimarchi
authors: S
authors: S
authors: Cannavò
mesh_terms: D000293:Adolescent; D020249:Hormone Replacement Therapy; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000503:physiopathology*; D008297:Male; D010641:Phenotype; D013739:Testosterone / Q000097:blood / Q000627:therapeutic use*
chemical_list: D013739:Testosterone