pid type title authors mentors source_title published_date url doi isbn issn eissn kbcsm:503 "journal article" "Oxidative Stress Markers After Laparoscopic and Open Cholecystectomy" "Stipancic, Igor; Zarkovic, Neven; Servis, Dražen; Sabolović, Senka; Tatzber, Franz; Busic, Zeljko"