Usefulness of endoscopic ultrasound in patients with minilithiasis and/or biliary sludge as a cause of symptoms of probable biliary origin after cholecystectomy Andrea Montenegro; Xavier Andújar; Fernando Fernández-Bañares; María Esteve; Carme Loras;

Impact of biliary stents in the performance of the EUS-guided tissue acquisition: A systematic review and meta-analysis Edson Guzmán-Calderón; Alfonso Chacaltana; Carlos Díaz-Arocutipa; Ramiro Díaz; Ronald Arcana; José Ramón Aparicio;