Checkoway, Harvey Response letter to the editor RE: Formaldehyde and leukemia: missing evidence! [electronic resource] - Cancer causes & control : CCC Jan 2013 - 205 p. digital Publication Type: Letter; Comment ISSN: 1573-7225 Standard No.: 10.1007/s10552-012-0112-x doi Subjects--Topical Terms: Hematologic Neoplasms--epidemiologyHumansLeukemia--epidemiologyOccupational Exposure--statistics & numerical dataRespiratory Hypersensitivity--epidemiology