1Division of Environmental Health Science, Mt. Sinai School of Medicine, 1 Gustave L. Levy Place, Box 1057, New York, NY, 10029
2Department of Obstetrics & Gynecology, College of Physicians and Surgeons, Columbia University, New York, NY, 10032
3Division of Epidemiology, Joseph L. Mailman School of Public Health, Columbia University, New York, NY, 10032
4Department of Epidemiology, School of Public Health, University of North Carolina, Chapel Hill, NC, 27599
Copyright © 2000 Cancer Research Campaign
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