American Journal of Epidemiology Advance Access originally published online on March 15, 2008
American Journal of Epidemiology 2008 167(8):1016; doi:10.1093/aje/kwn039
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American Journal of Epidemiology © The Author 2008. Published by the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org.
LETTERS TO THE EDITOR |
FOUR AUTHORS REPLY
1 HealthPartners Research Foundation, Minneapolis, MN 55440-1524
2 Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, SE 171 77, Stockholm, Sweden
3 Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115
(e-mail: juhua.luo@ki.se)
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We thank Sharifi and Farrar for their interest (1)