- Correspondence to Dr Jesús M Banales, Department of Liver and Gastrointestinal Diseases, Biodonostia Research Institute-Donostia University Hospital, Paseo del Dr Begiristain sn, San Sebastián E-20014, Spain;
- Received May 15, 2013
- Revised December 20, 2013
- Accepted December 21, 2013
- First published January 16, 2014.
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