Endoscopic ultrasound-guided biliodigestive drainage is a good alternative in patients with unresectable cancer - Ramírez-Luna, M. A.; Téllez-Ávila, F. I.; Giovannini, M.; Valdovinos-Andraca, F.; Guerrero-Hernández, I.; Herrera-Esquivel, J. (Endoscopy, 2011)