Hemobilia in Hereditary Hemorrhagic Telangiectasia: An Unusual Complication of Endoscopic Retrograde Cholangiopancreatography - Costa Macedo , T; Maldonado , R; Valente , A; Palma , R; Raimundo , M; Liberato , M; Távora , I; Alexandrino , P; Carneiro de Moura , M (Endoscopy, 2003)