- Correspondence to Dr William Martinez, Division of General Internal Medicine, Vanderbilt University Medical Center, 1215 Twenty-first Avenue South, 6000 Medical Center East, NT, Nashville, TN 37232-8300, USA;
- Received November 10, 2016
- Revised April 3, 2017
- Accepted April 4, 2017
- First published April 25, 2017.
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