Authors: Victoria P Y Tan; Wai M Wong; Ting K Cheung; Kam C Lai; Ivan F N Hung; Pierre Chan; Roberta Pang; Benjamin C Y Wong Journal: J Gastroenterol Date: 2011-05-03 Impact factor: 7.527
Authors: O Pech; L Gossner; H Manner; A May; T Rabenstein; A Behrens; M Berres; J Huijsmans; M Vieth; M Stolte; C Ell Journal: Endoscopy Date: 2007-07 Impact factor: 10.093