1. Penn State University, University Park, PA, USA
2. Ohio State University Medical Center and College of Pharmacy, Columbus, OH, USA
3. University of Pennsylvania School of Nursing, Philadelphia, PA, USA
4. Kingston General Hospital, Kingston, ON, Canada
5. University College Hospital, London, UK
6. National University of Asuncion Medical School, Asuncion, Paraguay
7. University of Auckland, New Zealand
8. University of Copenhagen, Denmark
9. Human Sciences Research Council, Cape Town, South Africa
10. The Alfred Hospital, Melbourne, Australia
11. Regional Hospital Morelia, Morelia, Michoacan, Mexico
12. University of São Paulo Medical School, Sao Paulo, Brazil