1 Division of General Internal Medicine (Dhhar), and of Clinical Pharmacology and Toxicology, Department of Medicine (Dhhar), University of Toronto, Toronto, Ont.; Department of Pediatrics (McColl), and Division of Rheumatology (McColl), University of Alberta, Edmonton, Alta.; Department of Pediatrics (Kitai, Levy, Verstegen), and Division of Infectious Disease, Department of Paediatrics (Kitai), University of Toronto; Division of Rheumatology (Levy, Verstegen), and of Clinical Pharmacology & Toxicology, Department of Paediatrics (Verstegen), The Hospital for Sick Children, Toronto, Ont.
2 Division of General Internal Medicine (Dhhar), and of Clinical Pharmacology and Toxicology, Department of Medicine (Dhhar), University of Toronto, Toronto, Ont.; Department of Pediatrics (McColl), and Division of Rheumatology (McColl), University of Alberta, Edmonton, Alta.; Department of Pediatrics (Kitai, Levy, Verstegen), and Division of Infectious Disease, Department of Paediatrics (Kitai), University of Toronto; Division of Rheumatology (Levy, Verstegen), and of Clinical Pharmacology & Toxicology, Department of Paediatrics (Verstegen), The Hospital for Sick Children, Toronto, Ont. ruud.verstegen@sickkids.ca.