1. a INRS-EMT, University of Quebec, 800 rue de la Gauchetiere, Montreal Quebec H5A 1K6, Canada
2. b INRS-EMT, University of Quebec, 800 rue de la Gauchetiere, Montreal Quebec H5A 1K6, Canada
3. c INRS-EMT, University of Quebec, 800 rue de la Gauchetiere, Montreal Quebec H5A 1K6, Canada