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

JOURNAL OF CLINICAL EPIDEMIOLOGY

ELSEVIER SCIENCE INC

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