Visrodia Kavel, Petersen Bret T
Division of Digestive and Liver Diseases, Columbia University, New York, New York, USA.
Department of Medicine, Division of Endoscopy, Mayo Clinic, Rochester, Minnesota, USA.
Gastrointest Endosc. 2018 Oct;88(4):620-623. doi: 10.1016/j.gie.2018.07.005.