[Effect of nitrates in drinking water on health].
D002675:Child, Preschool; D005504:Food Analysis; D006801:Humans; D008706:Methemoglobin / Q000032:analysis; D009566:Nitrates / Q000032:analysis / Q000633:toxicity*; D014675:Vegetables / Q000032:analysis; D014881:Water Supply / Q000032:analysis*
D009566:Nitrates; D008706:Methemoglobin