Kim, 1998, Korean J Gastrointest Endosc, 18, 534
Choi, 1998, Korean J Gastrointest Endosc, 18, 97
Fuji, 1985, Endoscopy, 17, 69, 10.1055/s-2007-1018460
Delhaye, 1992, Gastroenterology, 102, 610, 10.1016/0016-5085(92)90110-K
Dumonceau, 1996, Gastrointest Endosc, 43, 547, 10.1016/S0016-5107(96)70189-X
Alhalel, 1995, Gastrointest Endosc Clin N Am, 5, 195, 10.1016/S1052-5157(18)30467-7
Fuji, 1989, Endoscopy, 21, 27, 10.1055/s-2007-1012889
Kim, 1998, Endoscopy, 30, 697, 10.1055/s-2007-1001391
Elton, 1998, Gastrointest Endosc, 47, 240, 10.1016/S0016-5107(98)70320-7
Jakobs, 2002, Endoscopy, 34, 551, 10.1055/s-2002-33211
Choi, 1997, Korean J Gastrointest Endosc, 16, 47
Cotton, 1991, Gastrointest Endosc, 37, 383, 10.1016/S0016-5107(91)70740-2
Kozarek, 1994, Gastrointest Endosc, 40, 592, 10.1016/S0016-5107(94)70260-8
Kim, 1991, Korean J Gastrointest Endosc, 11, 329
Sherman, 1998, Gastrointest Endosc Clin N Am, 8, 115
Hookey, 2006, Endoscopy, 38, 670, 10.1055/s-2006-925447
Son, 2005, Korean J Gastrointest Endosc, 31, 155
