Hacım, N. A.; Akbas, A.; Meric, S.; Karabay, O.; Ulgen, Y.; Tokocin, M.; Yigitbas, H. Predictive Value of Ultrasonography and Magnetic Resonance Cholangiopancreatography in the Diagnosis of Biliary Obstruction. Ann Ital Chir 2020, 91, 277-282.