1. Michael G. DeGroote Cochrane Canada and McMaster GRADE Centres and
2. Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada;
3. American Society of Hematology, Washington, DC;
4. Iberoamerican Cochrane Center, Biomedical Research Institute Sant Pau (IIB Sant Pau-CIBERESP), Barcelona, Spain;
5. Department of Medicine, Dalhousie University, Halifax, NS, Canada;
6. Department of Medicine, McMaster University, Hamilton, ON, Canada;
7. Urology Section, Minneapolis VA Health Care System, Minneapolis, MN;
8. Department of Urology, University of Minnesota, Minneapolis, MN;
9. Department of Medicine, Fred Hutchinson Cancer Research Center, University of Washington School of Medicine, Seattle, WA;
10. Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, The Netherlands;
11. Department of Paediatrics, University of Melbourne, Melbourne, Australia;
12. Department of Haematology, Royal Children’s Hospital, Melbourne, Australia;
13. Haematology Research, Murdoch Children’s Research Institute, Melbourne, Australia;
14. Kids Cancer Centre, Sydney Children's Hospital, Randwick, Australia;
15. Division of Nephrology and Hypertension, Department of Medicine, University of Kansas Medical Center, Kansas City, KS;
16. Department of Internal Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile;
17. Department of Medicine;
18. Department of Pathology, Duke University Medical Center, Durham, NC;
19. Department of Biostatistics and Epidemiology, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK;
20. Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT;
21. Department of Medicine; and
22. Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA