[Water hardness and the incidence of malignant neoplasms].
D006801:Humans; D009369:Neoplasms / Q000453:epidemiology*; D002094:Republic of Belarus; D012424:Rural Population; D014881:Water Supply
K voprosu o zhestkosti vody i zabolevaemost' naseleniia zlokachestvennymi novoobrazovaniiami?