AUTHOR CONTRIBUTIONS
Development of the project: Akbulut S, Sahin TT, Yilmaz S and Ozsay O; data collection: Sarici KB, Baskiran A, Gonultas F, Ozdemir F and Ersan V; writing: Akbulut S, Isik B and Yilmaz S; drawing of figures: SU; radiological interventions: Kutlu R; endoscopic interventions: Harputluoglu M; editing; Akbulut S, Isik B, Sahin TT and Yilmaz S