1. Department of Otolaryngology – Head and Neck Surgery McGill University Montreal QC Canada
2. Centre for Clinical Epidemiology Lady Davis Institute for Medical Research of the Jewish General Hospital Montreal QC Canada
3. Department of Biomedical Sciences University of Montreal Montreal QC Canada
4. Department of Pathology Jewish General Hospital McGill University Montreal QC Canada
5. Department of Otolaryngology – Head and Neck Surgery Hillel Yaffe Medical Center Hadera Israel
6. Division of Endocrinology Department of Medicine Jewish General Hospital McGill University Montreal QC Canada