1. Bastyr University; Seattle WA USA
2. McMaster University; Division of Plastic & Reconstructive Surgery; 1200 Main Street West - HSC 4E9 Hamilton Ontario Canada L8N 3Z5
3. Bastyr University; Bastyr University Research Institute; 14500 Juanita Dr. NE Kenmore WA USA 98028
4. Norwegian Knowledge Centre for the Health Services; Oslo Norway
5. McMaster University; Department of Clinical Epidemiology and Biostatistics; Hamilton Ontario Canada
6. The Hospital for Sick Children Research Institute; 555 University Avenue Room 2420 Toronto Ontario Canada M5G 1X8
7. University of Toronto; Institute of Health Policy, Management and Evaluation; Toronto Ontario Canada