1 Center of Excellence for Partnership with Patients and the Public, University of Montreal Hospital Research Center and Faculty of Medicine, Montreal, Canada antoine.boivin@umontreal.ca.
2 BMJ, London, UK.
3 Patient-Centered Outcomes Research Institute, Washington, DC, USA.
4 Center of Excellence for Partnership with Patients and the Public, University of Montreal Hospital Research Center and Faculty of Medicine, Montreal, Canada.
5 Department of Health Research Methods, Evidence, and Impact, Centre for Health Economics and Policy Analysis, McMaster University, Hamilton, ON, Canada.