American Journal of Epidemiology Advance Access originally published online on July 13, 2005
American Journal of Epidemiology 2005 162(4):393-394; doi:10.1093/aje/kwi227
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American Journal of Epidemiology Copyright © 2005 by the Johns Hopkins Bloomberg School of Public Health All rights reserved
LETTERS TO THE EDITOR |
THE AUTHORS REPLY
1 Institute of Environmental Medicine, Karolinska Institutet, Stockholm, SE-171 77 Sweden
2 Department of Epidemiology, School of Public Health, University of North Carolina, Chapel Hill, NC 27599
3 Department of Medicine, Huddinge University Hospital, Karolinska Institutet, Stockholm, SE-141 86 Sweden
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We thank Dr. Erren (1
) for his comments about our study (2
). Dr. Erren discusses the possibility that exposure to light at night might confound the results found for extremely-low-frequency electromagnetic fields in