1. Department of Surgery, Université de Sherbrooke, Sherbrooke, Québec, Canada.
2. Division of Thoracic Surgery, Department of Surgery, Université de Sherbrooke, Sherbrooke, Québec, Canada.
3. Department of Microbiology and Infectious Diseases, Faculty of Medicine and Health Sciences. Université de Sherbrooke, Sherbrooke, Québec, Canada.