Comprehensive, easy-to-understand information about this condition
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Klinefelter syndrome
MONDO:0006823
pentasomy X
MONDO:0015228
maternal uniparental disomy of chromosome X
MONDO:0016851
paternal uniparental disomy of chromosome X
MONDO:0016852
49,XXXYY syndrome
MONDO:0016854
partial duplication of chromosome 1
MONDO:0016921