1 Division of Pediatric Pulmonology, First Department of Pediatrics, National and Kapodistrian University of Athens School of Medicine and Agia Sofia Children's Hospital, Athens, Greece.
2 Division of Pediatric Respirology, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada.
3 Université Paris Cité, NeuroDiderot-INSERM, Academic Hospital Robert Debré, Paris, France.