N Concordance 1 ct phenotype associated with trisomy 21 (Down's syndrome). In this study we exam 2 he prevalence rates of marker anomalies (Down's syndrome, polydactyly, oral clef 3 type dementia, and in individuals with Down's syndrome who show no signs of dem 4 parameters. An algorithm to detect Down's syndrome was used for this 5 additional chromosome abnormalities in Down's syndrome babies, its presence doe 6 ctions between Alzheimer's disease and Down's syndrome led researchers initiall 7 case of apparent trisomy 21 without the Down's syndrome phenotype. 8 e-positive rates of serum screening for Down's syndrome (i) between 1970 and 199 9 the number of terminations due to fetal Down's syndrome from NDSCR were compared 10 ual stimulation the older subjects with Down's syndrome had significantly lower 11 e incidence of specific solid tumors in Down's syndrome (DS) is not well establi 12 proband, a male with minor features of Down's syndrome, had a major cell line w 13 a recently described prenatal marker of Down's syndrome, by comparing levels in 14 xcess of testicular germ cell tumors in Down's syndrome: three case reports and