“…9, 17, 38, 40-45, 49-51, 55, 58, 61, 62, 64, 65, 67-70, 73-77, 79, 81, 82, 84, 86, 90, 92-95, 98-111, 113-116, 118-120, 122-132, 134-136, 138, 139, 141-143, 147-153, 155, 156, 158-164 Of the 133 included studies, 107 (80.5%) were observational 9, 11, 38-45, 47-51, 53-64, 66, 67, 69-76, 79-90, 92-98, 100-102, 104-106, 108-114, 117-126, 128-131, 133-139, 141-144, 147, 148, 151-159, 162, 164 and 17 (12.8%) were qualitative. 46,62,70,77,78,87,90,99,100,116,124,127,143,149,150,156,160 Most of the included studies (115 [86.5%]) had a gynecology and obstetrics focus 9,11,16,17,20,38,39…”