« PreviousNext »Journal of Clinical Epidemiology
Volume 62, Issue 12 , Pages 1226-1232, December 2009
Volume 62, Issue 12 , Pages 1226-1232, December 2009
Instrumental variables I: instrumental variables exploit natural variation in nonexperimental data to estimate causal relationships
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PII: S0895-4356(09)00014-6
doi:10.1016/j.jclinepi.2008.12.005
© 2009 Elsevier Inc. All rights reserved.
« PreviousNext »Journal of Clinical Epidemiology
Volume 62, Issue 12 , Pages 1226-1232, December 2009
Volume 62, Issue 12 , Pages 1226-1232, December 2009
