Ways to Optimize Diagnostic and Treatment Approach in Patients with Non-malignant Obstructive Jaundice Journal title: Гастроентерологія Authors: V.P. Kryshen, D.Yu. Riazanov, V.Ye. Kudriavtseva, A A. Poliudov, V.V. Zadorozhnyi, A.H. Ruban Subject(s):