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. 2015 May 7;50(6):409–415. doi: 10.1097/RLI.0000000000000144

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Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License, where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially.

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TABLE 2.

Characteristics of the Study Cohort

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