title: Normal rate of sister chromatid exchange in Down syndrome.
mesh_terms: D000328:Adult; D002648:Child; D002675:Child, Preschool; D002842:Chromatids; D004314:Down Syndrome / Q000150:complications / Q000235:genetics*; D005260:Female; D006801:Humans; D007223:Infant; D007938:Leukemia / Q000235:genetics; D008297:Male