Initial experience with laparoscopic revisional single anastomosis duodeno-ileal bypass (SADI-S) after failed sleeve gastrectomy - Michał Wysocki; Maciej Borys; Dorota Budzyńska; Magdalena Pisarska-Adamczyk; Piotr Małczak; Anna Rajtar; Andrzej Budzynski (Videosurgery and Other Miniinvasive Techniques)