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American Journal of Epidemiology Vol. 152, No. 2 : 195-196
Copyright © 2000 by The Johns Hopkins University School of Hygiene and Public Health

LETTERS TO THE EDITOR

RE: "PLACENTA PREVIA: PREPONDERANCE OF MALE SEX AT BIRTH"

William H. James

Galton Laboratory Department of Biology University College London London, United Kingdom NW1 2HE


   INTRODUCTION
 
Editor's note: In accordance with Journal policy, Dr. Demissie and coauthors were asked if they wished to respond to this letter but chose not to do so.

Demissie et al. (1Go), on the basis of their own data and of a . . . [Full Text of this Article]


   REFERENCES
 

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