Is Low Selenium Status a Risk Factor for Lung Cancer?
Paul Knekt1,, Jukka Marniemi2, Lyly Teppo3, Markku Heliƶvaara1 and Arpo Aromaa1 1National Public Health Institute Helsinki, Finland 2Social Insurance Institution Turku, Finland 3Finnish Cancer Registry Helsinki, Finland Reprint requests to Dr. Paul Knekt, National Public Health Institute, Mannerheimintie 166, 00300 Helsinki, Finland.