title: The need for exposure grouping strategies in studies of magnetic fields and childhood leukemia.
authors.forename: H
authors.initials: H
authors.lastname: Kromhout
authors.forename: D P
authors.initials: DP
authors.lastname: Loomis
mesh_terms: D000328:Adult; D002648:Child; D002675:Child, Preschool; D004574:Electromagnetic Fields / Q000009:adverse effects*; D004812:Epidemiologic Methods; D006801:Humans; D015994:Incidence; D007938:Leukemia / Q000453:epidemiology* / Q000209:etiology; D016273:Occupational Exposure / Q000009:adverse effects*; D015203:Reproducibility of Results; D012307:Risk Factors; D012680:Sensitivity and Specificity