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Does hormone replacement therapy cause breast cancer? An application of causal principles to three studies
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  1. Correspondence to Professor Samuel Shapiro, Department of Public Health and Family Medicine, University of Cape Town Medical School, Anzio Road, Observatory, Cape Town, South Africa; samshap{at}mweb.co.za
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Shapiro S, Farmer RDT, Stevenson JC, et al
Does hormone replacement therapy cause breast cancer? An application of causal principles to three studies

Publication history

  • Received September 28, 2011
  • Accepted November 2, 2011
  • First published January 16, 2012.
Online issue publication 
March 27, 2012

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