1. Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada.
2. St. Joseph's Health System Research Network. Hamilton, Ontario, Canada.
3. Department of Psychology, Lakehead University, Thunder Bay, Ontario, Canada.
4. Department of Public Health, Central West Information Planning Unit, Hamilton, Ontario, Canada.
5. Programme for Educational Research & Development, Hamilton, Ontario, Canada.
6. Victorian Order of Nurses, Hamilton-Wentworth, Hamilton, Ontario, Canada.
7. St. Joseph's Healthcare Hamilton, Ontario, Canada.