Department of Gastroenterology, Hepatology, and Nutrition, The Pier C. and Renee A. Borra Family Endowed Chair in Gastroenterology, and Hepatology, Digestive Disease and Surgery Institute, Digestive Disease and Surgery Institute, Lerner College of Medicine, Cleveland, Ohio, USA

Correspondence to Miguel Regueiro, MD, Department of Gastroenterology, Hepatology, and Nutrition, The Pier C. and Renee A. Borra Family Endowed Chair in Gastroenterology, and Hepatology, Digestive Disease and Surgery Institute, Digestive Disease and Surgery Institute, Lerner College of Medicine, Cleveland Clinic, 9500 Euclid Ave. A30, Cleveland, OH 44195, USA. Tel.: +1 216 445 6641; e-mail: regueim@ccf.org