title: Letter: Mortality and water hardness.
mesh_terms: D001315:Australia; D002119:Calcium Carbonate / Q000009:adverse effects / Q000032:analysis; D002318:Cardiovascular Diseases / Q000401:mortality*; D003327:Coronary Disease / Q000401:mortality; D004777:Environment; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014867:Water / Q000032:analysis; D014881:Water Supply
chemical_list: D014867:Water; D002119:Calcium Carbonate