title: Down's syndrome and related abnormalities in an area of high background radiation in coastal Kerala.
mesh_terms: D002869:Chromosome Aberrations; D004314:Down Syndrome / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D005260:Female; D006801:Humans; D007194:India; D008607:Intellectual Disability / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D008297:Male; D008423:Maternal Age; D011830:Radiation Effects; D011839:Radiation, Ionizing; D013910:Thorium
chemical_list: D013910:Thorium