Hemobilia as a rare complication after endoscopic ultrasound-guided fine-needle aspiration for hilar cholangiocarcinoma - Kawakubo, K.; Isayama, H.; Takahara, N.; Yamamoto, N.; Kogure, H.; Sasaki, T.; Hirano, K.; Sasahira, N.; Tada, M.; Koike, K. (Endoscopy, 2011)