title: Prevalence and pathological changes of ischaemic heart-disease in a hard-water and in a soft-water area.
mesh_terms: D000328:Adult; D000368:Aged; D002118:Calcium / Q000032:analysis; D009202:Cardiomyopathies / Q000453:epidemiology; D003327:Coronary Disease / Q000453:epidemiology*; D004777:Environment; D006801:Humans; D008131:London; D008274:Magnesium / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000032:analysis; D012606:Scotland; D014881:Water Supply
chemical_list: D008274:Magnesium; D002118:Calcium