Risk factors for intraabdominal abscess formation after laparoscopic appendectomy – results from the Pol-LA (Polish Laparoscopic Appendectomy) multicenter large cohort study - Anna Lasek; Michał Pędziwiatr; Michał Wysocki; Judene Mavrikis; Piotr Myśliwiec; Tomasz Stefura; Maciej Bobowicz; Piotr Major; Mateusz Rubinkiewicz; Pol-LA (Polish Laparoscopic Appendectomy) Collaborative Study Group (Videosurgery and Other Miniinvasive Techniques)