THE 21 TRISOMY--CURRENT STAGE OF CHROMOSOMAL RESEARCH.
D001669:Biochemical Phenomena; D001671:Biochemistry; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002875:Chromosomes; D004314:Down Syndrome; D004813:Epidemiology; D006664:History; D006801:Humans; D007938:Leukemia; D012106:Research; D009626:Terminology as Topic; D014314:Trisomy
BIOCHEMISTRY; CHROMOSOME ABNORMALITIES; EPIDEMIOLOGY; HISTORY; LEUKEMIA; MONGOLISM; NOMENCLATURE; RESEARCH; REVIEW; TRISOMY