1 Science Serving Society, Bloomfield Hills, MI, USA. Electronic address: LE@ScienceServingSociety.com.
2 Department of Medicine, University of Toronto, Canada; Clinical Epidemiology Program, Sunnybrook Research Institute, Canada; Institute for Clinical Evaluative Sciences in Ontario, Canada; Division of General Internal Medicine, Sunnybrook Health Sciences Centre, Canada; Centre for Leading Injury Prevention Practice Education & Research, Canada.