Intraductal optical coherence tomography during endoscopic retrograde cholangiopancreatography for investigation of biliary strictures - Arvanitakis, M.; Hookey, L.; Tessier, G.; Demetter, P.; Nagy, N.; Stellke, A.; De Maertelaer, V.; Devière, J.; Le Moine, O. (Endoscopy, 2009)