1. University of Alberta; Department of Pediatrics; Aberhart Centre One, Room 9424 11402 University Avenue Edmonton Alberta Canada T6G 2J3
2. Alberta Research Centre for Child Health Evidence & University of Alberta Evidence-based Practice Centre; Department of Pediatrics; Aberhart Centre One, Room 9418 11402 University Avenue Edmonton Alberta Canada T6G 2J3
3. University of Alberta; Alberta Research Centre for Child Health Evidence; Aberhart Centre One, Room 9420 11402 University Ave. Edmonton Alberta Canada T6G 2J3
4. Faculty of Medicine, University of Calgary, Alberta Children's Hospital; Department of Pediatrics; 2888 Shaganappi Trail NW Calgary Alberta Canada T3B 6A8
5. University of Ottawa; Departments of Pediatrics and Emergency Medicine; Ottawa Ontario Canada
6. Manitoba Institute of Child Health; 513-715 McDermot Avenue Winnipeg Manitoba Canada MB R3E 3P4
7. The Montreal Children's Hospital; Department of Pediatrics; McGill University Health Centre 2300 Tupper Street, Room A216 Montreal Quebec Canada H3H 1P3
8. Hospital de Santa Maria, Centro Hospitalar Lisboa Norte EPE and Faculdade de Medicina, Instituto de Medicina Molecular, Universidade de Lisboa; Departamento da Criança e da Família (Child and Family Department) and Farmacologia Clínica e Terapêutica (Clinical Pharmacology and Therapeutics Unit); Avenida Professor Egas Moniz Lisboa Lisboa Portugal 1649-028