1. University of Ottawa; School of Psychology, Faculty of Social Sciences; Room 407C, Montpetit Hall 125 University Ottawa Ontario Canada K1N 6N5
2. London School of Hygiene and Tropical Medicine; PEHRU; Keppel Street London UK WC1E 7HT
3. C/O Cochrane Developmental, Psychosocial and Learning Problems Group; Bristol UK
4. The Hospital for Sick Children; Department of Psychology & Division of Haematology/Oncology; 555 University Avenue Toronto Ontario Canada M5G 1X8
5. University College London; Primary Care and Population Sciences; 410 Holburn Union Building Highgate Hill London UK N19 5LW
6. University of Ottawa Heart Institute; Cardiovascular Research Reference Centre; Room H1-1 40 Ruskin Street Ottawa Ontario Canada K1Y 4W7
7. University of Ottawa; Institute of Population Health; Ottawa Canada
8. University of Alberta; Department of Agricultural, Food and Nutritional Science and The Centre for Health Promotion Studies; 4-10 Agricultural and Forestry Centre Edmonton Alberta Canada T6H 4J1
9. University of Ottawa; Centre for Global Health, Institute of Population Health; 1 Stewart Street Ottawa Ontario Canada K1N 6N5