- Correspondence to Professor S Nancey, Department of Gastroenterology, Lyon-Sud University Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, Pierre-Bénite 69495, France;
- Received June 7, 2015
- Revised July 8, 2015
- Accepted July 15, 2015
- First published August 5, 2015.
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