Köksal, Aydın Şeref; Eminler, Ahmet Tarık; Parlak, Erkan; Ahmet Gurakar
(ELSEVIER SCIENCE INC, 2017)
In this review, we will focus on the endoscopic treatment of ASs, with special emphasis to refractory cases. (C) 2017 Elsevier Inc. All rights reserved.