1Kaiser Permanente, California, USA; Guidelines International Network - North America (GIN NA)
2Guidelines International Network - North America (GIN NA); American Cancer Society, Atlanta, Georgia, USA
3University of Toronto, Toronto, Ontario, Canada
4Kaiser Permanente Evidence-based Practice Center, Portland, Oregon, USA
5RTI-UNC Evidence-based Practice Center, Durham, North Carolina, USA
6Bruyère Research Institute, Ottawa, Ontario, Canada