1. Department of MedicineMcMaster University Hamilton ON Canada
2. Department of Otolaryngology–Head & Neck SurgerySt. Michael's Hospital, University of Toronto Toronto ON Canada
3. Department of MedicineUniversity of Toronto Toronto ON Canada
4. Department of Health Research MethodsEvidence & Impact (formerly, Clinical Epidemiology & Biostatistics), McMaster University Hamilton ON Canada
5. Department of Intensive Care and Perioperative MedicineJagiellonian University Medical College Kraków Poland