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From the Cancer Prevention and Control Program (Dr Wirth, Dr Burch, Dr Shivappa, Dr
Steck, Mr Hurley, and Dr Hébert) and Department of Epidemiology and Biostatistics
(Drs Burch, Shivappa, Steck, and Hébert), University of South Carolina, Columbia;
WJB Dorn VA Medical Center (Dr Burch), Columbia, SC; Department of Social and Preventive
Medicine (Dr Violanti), School of Public Health and Health Professions, University
of Buffalo, The State University of New York; Biostatistics and Epidemiology Branch
(Dr Burchfiel, Dr Fekedulegn, Dr Andrew, Dr Hartley, Ms Mnatsakanova, and Dr Charles)
and Toxicology and Molecular Biology Branch (Dr Miller), Health Effects Laboratory
Division, National Institute for Occupational Safety and Health, Centers for Disease
Control and Prevention, WV; and Department of Epidemiology and Biostatistics (Dr Vena),
College of Public Health, University of Georgia, Athens, and Department of Public
Health Sciences, Medical University of South Carolina, Charleston.