The spiral enteroscopy training initiative: results of a prospective study evaluating the Discovery SB overtube device during small bowel enteroscopy (with video) - Buscaglia, J. M.; Dunbar, K. B.; Okolo, P. I., III; Judah, J.; Akerman, P. A.; Cantero, D.; Draganov, P. V. (Endoscopy, 2009)