William K Silverstein, assistant professor, staff physician, associate scientist, lead in choosing Wisely Canada14, Irene Y Chang, medical student45, Shiva Sreenivasan, consultant in acute and general internal medicine67, Sanket S Dhruva, assistant professor810 1Department of Medicine, University of Toronto, Toronto ON, Canada 2Division of General Internal Medicine, Sunnybrook Health Sciences Centre, Toronto ON, Canada 3Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto...