Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement

ANNALS OF INTERNAL MEDICINE

AMER COLL PHYSICIANS

1. Canadian Institutes of Health Research
2. Universita di Modena e Reggio Emilia, Italy
3. Cancer Research UK
4. Clinical Evidence BMJ Knowledge
5. Cochrane Collaboration
6. GlaxoSmithKline, Canada
7. Italian Ministry of University [COFIN-PRIN 2002 prot. 2002061749, COFIN-PRIN 2006 prot. 2006062298]
8. University of Ottawa Research Chair
9. MRC [G0800808] Funding Source: UKRI
10. Medical Research Council [G0800808] Funding Source: researchfish
11. Russian Science Foundation [17-78-20062, 16-17-00125] Funding Source: Russian Science Foundation
12. Division Of Ocean Sciences
13. Directorate For Geosciences [752972] Funding Source: National Science Foundation