title: Paucity of 47,XXX and 46,XX/47,XXX among routine diagnostic cytogenetic referrals.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002869:Chromosome Aberrations; D005260:Female; D006801:Humans; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000235:genetics; D008297:Male; D009030:Mosaicism; D012730:Sex Chromosomes; D014960:X Chromosome