Medicine and the human chromosomes.
D002455:Cell Division; D002869:Chromosome Aberrations; D002875:Chromosomes; D003582:Cytogenetics; D004314:Down Syndrome; D005260:Female; D030342:Genetic Diseases, Inborn / Q000453:epidemiology; D006801:Humans; D007231:Infant, Newborn; D007621:Karyotyping; D008297:Male; D009030:Mosaicism; D012728:Sex Chromatin; D012729:Sex Chromosome Aberrations; D014314:Trisomy