1 Dr. Brignardello-Petersen is a lecturer, Faculty of Dentistry, University of Chile, Santiago, and a doctoral student, Institute of Health Policy, Management and Evaluations at the University of Toronto.
2 Dr. Carrasco-Labra is an instructor, Faculty of Dentistry, University of Chile, Santiago, and a doctoral student, Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada.
3 Dr. Glick is the dean, School of Dental Medicine, University at Buffalo, The State University of New York. He also is the editor of The Journal of the American Dental Association.
4 Dr. Guyatt is a distinguished professor, Department of Clinical Epidemiology and Biostatistics, and a joint member, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
5 Dr. Azarpazhooh is an assistant professor, Dental Public Health, Faculty of Dentistry; an assistant professor, Endodontics, Faculty of Dentistry; and an assistant professor, Clinical Epidemiology and Health Care Research, Institute of Health Policy, Management and Evaluation, Faculty of Medicine, University of Toronto. He also is the head, Endodontics, Mount Sinai Hospital, Toronto. Address correspondence to Dr. Azarpazhooh at Faculty of Dentistry, 124 Edward St., Room 515C, Toronto, Ontario, Canada M5G 1G6, e-mailamir.azarpazhooh@dentistry.utoronto.ca.