“…Through our systematic search, 125 unique articles were retrieved, 68 of which underwent full-text evaluation for eligibility (57 studies excluded based on title and abstract screening). Ultimately, 18 studies reporting on 4622 patients undergoing cytoreduction surgery for ovarian cancer (4278 non-AL and 344 AL patients) fulfilled the inclusion criteria and were included in our quantitative data synthesis [ 8 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ] ( Figure 1 ) [ 32 ]. Six of the studies were conducted in the United States of America, four in Germany, three in South Korea, one in the United Kingdom, one in Austria, one in Spain, one in France, and one was multicentric.…”