Kalaitzakis Evangelos, Helgeson Johan, Strömdahl Martin, Tóth Ervin
Endoscopy Unit, Department of Gastroenterology, Skane University Hospital, University of Lund, Malmö, Sweden.
Gastrointest Endosc. 2015 May;81(5):1295-6. doi: 10.1016/j.gie.2014.12.003.