title: Possible contribution from epidemiological studies.
abstract: The problem of chemically contaminated water supplies are in general terms followed by a description of three examples of water supply problems in China. A large-scale prospective epidemiological study, now in the early planning stages, to be carried out in China is also described.
mesh_terms: D002681:China; D006801:Humans; D008113:Liver Neoplasms / Q000139:chemically induced* / Q000453:epidemiology; D014873:Water Pollutants / Q000009:adverse effects*; D014874:Water Pollutants, Chemical / Q000009:adverse effects* / Q000032:analysis; D014881:Water Supply
chemical_list: D014873:Water Pollutants; D014874:Water Pollutants, Chemical