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Case-control studies on venous thromboembolism: bias due to design? A methodological study on venous thromboembolism

Lothar A J Heinemann1, Michael A Lewis, Anita Assmann

  • 1ZEG-Centre for Epidemiology & Health Research Berlin, Berlin, Germany. heinemann@zeg-berlin.de

Contraception
|April 4, 2002
PubMed

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