American Journal of Epidemiology Advance Access originally published online on July 31, 2008
American Journal of Epidemiology 2008 168(6):665-666; doi:10.1093/aje/kwn181
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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 |
THE AUTHORS REPLY
1 The National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
2 The Fertility Clinic, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
3 Department of Neonatology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
(e-mail: henriettesvarrenielsen@hotmail.com)
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We thank James (1) for his interest in our study (2), in which we found preceding brothers to be associated with a reduced birth weight of subsequent children. We fully