M. Emin CANER; Fatih HİLMİOĞLU; Sedat BOYACIOĞLU; A. İhsan Doğru; İsmet TAŞ; Gülay TEMUÇİN; Burhan ŞAHİN. THE ULTRASONOGRAFIC ASSESMENT OF THE LEVELS AND CAUSES IN BILIARY OBSTRUCTION. Turkish Journal of Gastroenterology 2020, 3, 81-87.