Am J Epidemiol 2004; 159:1201.
Copyright © 2004 by the Johns
Hopkins Bloomberg School of Public Health
LETTERS TO THE EDITOR |
RE: "USE OF ELECTRIC BEDDING DEVICES AND RISK OF BREAST CANCER IN AFRICAN-AMERICAN WOMEN"
Department of Preventive Medicine, School of Medicine, Stony Brook University, Stony Brook, NY 11794-8036
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In their analysis of electric bedding devices, Zhu et al. (1) included participants who used the blanket only to warm the bed as well as those who kept the blanket