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Clinical/Narrative Review: PDF Only

A Primer on Effectiveness and Efficacy Trials

Singal, Amit G MD, MS1,2; Higgins, Peter D R MD, PhD3; Waljee, Akbar K MD, MS3,4

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Clinical and Translational Gastroenterology: January 2014 - Volume 5 - Issue 1 - p e45
doi: 10.1038/ctg.2013.13
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© 2014 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology