1. Surveillance Lab, McGill Clinical and Health Informatics; McGill University; Montreal QC Canada
2. Department of Epidemiology, Biostatistics and Occupational Health; McGill University; Montreal QC Canada
3. Children's Hospital Informatics Program; Children's Hospital Boston; Boston MA USA
4. Division of General Pediatrics; Department of Medicine; Children's Hospital Boston; Harvard Medical School; Boston MA USA
5. Agence de la santé et des services sociaux de Montréal, Direction de santé publique; Montreal QC Canada