title: Down's syndrome: a cytogenetic and statistical survey of 127 Japanese patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001722:Birth Order; D001724:Birth Weight; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000453:epidemiology* / Q000235:genetics*; D005260:Female; D006801:Humans; D007223:Infant; D007564:Japan; D007621:Karyotyping; D008297:Male; D008423:Maternal Age; D008875:Middle Aged