Negm Ahmed A, Petersen Claus, Schneider Andrea
Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany.
Department of Pediatric Surgery, Hannover Medical School, Hannover, Germany.
Gastrointest Endosc. 2016 Mar;83(3):670-2; discussion 671-2. doi: 10.1016/j.gie.2015.09.023. Epub 2015 Sep 28.