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PDFTheory and methods
Baseline selection on a collider: a ubiquitous mechanism occurring in both representative and selected cohort studies
- Correspondence to Dr Lorenzo Richiardi, Department of Medical Sciences, University of Turin, Turin 10124, Italy; lorenzo.richiardi{at}unito.it
Citation
Baseline selection on a collider: a ubiquitous mechanism occurring in both representative and selected cohort studies
Publication history
- Received October 29, 2018
- Revised January 15, 2019
- Accepted February 10, 2019
- First published February 25, 2019.
Online issue publication
April 10, 2019
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© Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.