- Correspondence to Dr Harry Sokol, Service de Gastroentérologie et Nutrition, Hôpital Saint-Antoine, 184 rue du faubourg St Antoine, Paris 75571, cedex 12, France;
- Received 17 September 2015
- Revised 12 January 2016
- Accepted 14 January 2016
- Published online 12 May 2017.
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