- Correspondence to Dr Fouad J Moawad, Gastroenterology Service, Department of Medicine, Walter Reed National Military Medical Center, 8901 Wisconsin Ave., Bethesda, MD 20889, USA; .
- Received October 2, 2014
- Revised January 7, 2015
- Accepted January 11, 2015
- First published February 4, 2015.
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