Water hardness at home and deaths from arteriosclerotic heart disease in Washington County, Maryland.
D000328:Adult; D003327:Coronary Disease / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D008274:Magnesium / Q000494:pharmacology; D008297:Male; D008396:Maryland; D008875:Middle Aged; D008903:Minerals / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
D008903:Minerals; D008274:Magnesium