Hum. Reprod. Advance Access published online on June 28, 2007
Human Reproduction, doi:10.1093/humrep/dem193
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© The Author 2007. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
Letter to the Editor |
Maternal lead exposure, secondary sex ratio and dose-exposure fallacy
Department of Epidemiology and Biostatistics, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands
1 Correspondence address. Tel: +31-024-3619132; Fax: +31-024-3613505; E-mail: p.jongbloet@epib.umcn.nl
| The first 10% of the full text of this article appears below. |
Sir,
Jarrell et al. (2006)
conclude that they did not find evidence for an association between maternal and fetal lead exposure and lower secondary sex ratio among newborns in a large sample in Mexico