American Journal of Epidemiology Advance Access originally published online on July 1, 2008
American Journal of Epidemiology 2008 168(3):353-354; doi:10.1093/aje/kwn200
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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 FIRST TWO AUTHORS REPLY
1 Cancer Control Research Program, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
2 Department of Health Care and Epidemiology, University of British Columbia, Vancouver, British Columbia, Canada
(e-mail: mmcbride@bccrc.ca)
| The first 10% of the full text of this article appears below. |
We thank Hanauer and Choi (1) for their interest in our study (2). They are concerned about the positive association we reported between childhood leukemia and vitamin intake in childhood and would like clarification about what constituted a vitamin supplement in the study.