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Frequency of non‐organ‐specific autoantibodies in TRT‐naive and TRT‐treated adult patients with 47,XXY Klinefelter’s syndrome and age‐matched controls. TRT, testosterone replacement therapy; ANA, anti‐nuclear antibodies; AMA, anti‐mitochondrial antibodies; ASMA, anti‐smooth muscle antibodies; dsDNA, anti‐double‐stranded DNA; ENA, anti‐extractable nuclear antigens
