[A retrospective-cohort study of drinking water and cancer].
D002681:China; D004938:Esophageal Neoplasms / Q000453:epidemiology; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000453:epidemiology*; D008297:Male; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000453:epidemiology; D014876:Water Pollution / Q000009:adverse effects*