1. University of British Columbia School of Information, , 1961 East Mall, Vancouver, BC , Canada V6T 1Z1
2. University of Washington School of Medicine Department of Biomedical Informatics and Medical Education, , 850 Republican St., Box 358047, Seattle, WA 98195 , USA
3. University of Washington School of Nursing, Health Sciences Building Department of Biobehavioral Nursing and Health Informatics, , Box 357260, 1959 NE Pacific Street, Seattle, WA 98195 , USA