© 2004 by Oxford University Press
© 2004 Oxford University Press
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Extended Follow-up of Cancer Incidence in Fluoride-Exposed Workers
Affiliations of authors: Institute of Public Health, University of Southern Denmark, Odense C, Denmark, and Department of Environmental Health, Harvard School of Public Health, Boston, MA (PG); Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark (JHO).
Correspondence to: Philippe Grandjean, MD, PhD, Institute of Public Health, University of Southern Denmark, Winslowparken 17, 5000 Odense, Denmark (e-mail: pgrand@hsph.harvard.edu)
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Workers at the cryolite mill in Copenhagen, Denmark, are unique because of their exposure to high levels of fluoride dust and their virtual lack of exposure to other occupational toxicants or carcinogens (1,2). We previously reported the cancer morbidity from 1943 through 1987 for 422 male cryolite workers employed for more than 6 months