© The Author 2005. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved.
Do drugs that stimulate ovulation increase the risk for endometrial stromal sarcoma?
Departments of 1 Obstetrics and Gynecology and 2 Institute of Pathology, Medical University of Graz, Austria
3 To whom correspondence should be addressed. Email: olaf.reich@meduni-graz.at
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Sir,
We read with interest the epidemiological study by Brinton et al. (2004)
, which reports a statistically significant risk for invasive