1. Psychiatrist and Professor, Universidade Federal da Paraíba, Brazil
2. Psychiatrist and Researcher, Centre de Recherche Fernand-Seguin, Hôpital Louis-H Lafontaine, Montreal, Quebec
3. General Practitioner and Professor, Université de Montréal, Montreal, Quebec
4. Psychiatrist and President, Collège des médecins du Québec, Montreal, Quebec
5. Post-doctoral researcher, McGill University, Montreal, Quebec