title: Letter: The 47 XXY karyotype.
mesh_terms: D000328:Adult; D001290:Attitude; D002648:Child; D004644:Emotions; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000209:etiology; D007248:Infertility, Male / Q000209:etiology; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000150:complications / Q000175:diagnosis / Q000235:genetics*; D008297:Male; D010287:Parent-Child Relations; D012730:Sex Chromosomes; D014424:Turner Syndrome / Q000150:complications / Q000175:diagnosis / Q000235:genetics*