Re: "Power-frequency electric and magnetic fields and risk of childhood leukemia in Canada".
D002170:Canada / Q000453:epidemiology; D002648:Child; D004574:Electromagnetic Fields / Q000009:adverse effects*; D006801:Humans; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000453:epidemiology* / Q000209:etiology*; D012306:Risk