1. PROSPERO International prospective registry of systematic reviews. Available: https://www.crd.york.ac.uk/prospero/
2. Does the PROSPERO registration prevent double review on the same topic?;Solla;BMJ Evid Based Med,2020
3. Augustin A , Boric M , Barcot O , et al . Outcomes of laparoscopic versus open appendectomy for suspected appendicitis during pregnancy: overview of discordant systematic reviews. PROSPERO 2020 CRD42020152071, 2020. Available: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020152071
4. Half of systematic reviews about pain registered in PROSPERO were not published and the majority had inaccurate status