1. Respiratory Division, McGill University Health Center and Meakins-Christie Laboratories, McGill University, Montréal, Québec, Canada, H3A 1A1
2. Neuromuscular Research Group, Montreal Neurological Institute, McGill University, Montréal, Québec, Canada, H3A 2B4
3. Biotechnology Research Institute, NRC, 6100 Royalmount Ave, Montréal, Québec, Canada, H4P 2R2