1. University of California Los Angeles, CA, USA
2. University of British Columbia, Vancouver, British Columbia, Canada
3. Intramed Medical Centre, Calgary, Alberta, Canada
4. Les Centres GHESKIO, Port-au-Prince, Haiti
5. Florida International University, Miami, FL, USA
6. Weill Medical College of Cornell University, New York, NY, USA
7. David Geffen School of Medicine at UCLA, Division of Infectious Diseases and Department of Epidemiology, CA, USA