1. Winslade Consultants Inc and Affiliate Member, Division of Clinical Epidemiology, Department of Medicine, McGill University, 233 Third Ave, Ottawa, ON K1S 2K2, Canada
2. The Prescription Shop, Carleton University, 1125 Colonel By Dr Ottawa, ON K1S 5R1, Canada
3. International Travel Clinic, Ultimate Health Medical Centre, 1390 Major Mackenzie Dr E, Richmond Hill, ON L4S 0A1, Canada