1. Institute of Industrial and Mathematical Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
2. Department of Mathematics, University of Miami, Coral Gables, FL 33124–4250, USA
3. Departments of Mathematics and Biology, Jeffery Hall, Queen's University, Kingston, Ontario K7L 3N6, Canada ()
4. Department of Mathematics and Statistics, University of New Brunswick, PO Box 4400, Fredericton, New Brunswick E3B 5A3, Canada
5. Mathematics Department, University of British Columbia, Vancouver, British Columbia V6T 1Z2, Canada
6. Department of Mathematics and Statistics, University of Victoria, Victoria, British Columbia V8W 3P4, Canada
7. Institute for Biodiagnostics, National Research Council Canada, Winnipeg, Manitoba R3B 1Y6, Canada
8. Central East Health Information Partnership, Box 159, 4950 Yonge Street, Suite 610, Toronto, Ontario M2N 6K1, Canada
9. Laboratory for Industrial and Applied Mathematics, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
10. Cadham Provincial Public Health Laboratory, Winnipeg, Manitoba R3C 3Y1, Canada