1 Department of Pediatrics, University of British Columbia and Children's and Women's Health Centres, Vancouver, BC V6H3V4, Canada. Electronic address: plavoie@cw.bc.ca.
2 Department of Pediatrics, University of British Columbia and Children's and Women's Health Centres, Vancouver, BC V6H3V4, Canada.
3 Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi.
4 Department of Pediatrics and Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, USA.
5 Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi; Department of Paediatrics, Kamuzu Central Hospital, Lilongwe, Malawi.
6 Swiss Tropical and Public Health Institute, Basel, Switzerland; Department of Pediatric Emergency Medicine, University Hospital of Bern, Bern, Switzerland.
7 Ministry of Health, Directorate of Clinical Services, Lilongwe, Malawi.
8 Swiss Tropical and Public Health Institute, Basel, Switzerland.
9 Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia and Children's and Women's Health Centres, Vancouver, BC, Canada.