Laura A O'Grady1*
, Holly Witteman2*
and C Nadine Wathen3* 
1
Department of Health Policy, Management and Evaluation, Faculty of Medicine, University of Toronto, Healthcare, Technology and Place, Centre for Global eHealth Innovation, University Health Network, R. Fraser Elliott Building, 4th floor, Toronto General Hospital, 190 Elizabeth Street, Toronto, ON M5G 2C4, Canada
2
Interactive Media Lab, Human Factors, Mechanical and Industrial Engineering, Health Care, Technology and Place, University of Toronto, 5 King's College Circle, Toronto, ON M5S 3G8, Canada
3
Faculty of Information & Media Studies, The University of Western Ontario, North Campus Building, Room 254, London, ON N6A 5B7, Canada