Chronologic Bias, Confounding by Indication, and COVID-19 Care.

Chest

Department of Veterans Affairs Center for Clinical Management Research, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI.

Published: July 2021

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8261122PMC
http://dx.doi.org/10.1016/j.chest.2021.01.087DOI Listing

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