title: Cytogenetic studies on mongols in Singapore.
mesh_terms: D000367:Age Factors; D000782:Aneuploidy; D002648:Child; D002869:Chromosome Aberrations; D002901:Chromosomes, Human, 13-15; D002904:Chromosomes, Human, 21-22 and Y; D003582:Cytogenetics; D004314:Down Syndrome / Q000150:complications / Q000235:genetics*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007621:Karyotyping; D007713:Klinefelter Syndrome / Q000150:complications*; D007938:Leukemia / Q000150:complications / Q000209:etiology / Q000235:genetics; D008297:Male; D009030:Mosaicism; D012846:Singapore; D014314:Trisomy