1. Department of Mechanical Engineering, University of British Columbia, 122-6250 Applied Science Lane, Vancouver, BC, Canada V6T 1Z4
2. Department of Mechanical Engineering, University of British Columbia, 103-6250 Applied Science Lane, Vancouver, BC, Canada V6T 1Z4
3. School of Population and Public Health, University of British Columbia, 364-2206 East Mall, Vancouver, BC, Canada V6T 1Z4
4. Department of Mechanical Engineering, University of British Columbia, 2058-6250 Applied Science Lane, Vancouver, BC, Canada V6T 1Z4