(1) Drexel University, Philadelphia

(1) Department of Health Care and Social Units Administration, School of Business and Economics, Technological Educational Institute of Athens, Greece

(1) Division of Paediatric Emergency Medicine, The Hospital for Sick Children, Department of Paediatrics, University of Toronto, Toronto Canada; (2) Institute of Public Health, National Yang Ming University, Taipei, Taiwan; (3) Department of Health Policy and Management, Boston University School of Public Health, Boston MA; (4) Division of General Pediatrics, Children’s Hospital Boston, Boston MA; (5) Division of Developmental Medicine5, Children’s Hospital Boston, Boston MA

(1) Centre for Innovation in Complex Care, University Health Network, Toronto, Ontario, Canada, M5G 2C4; (2) Department of Medicine, University Health Network, 200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4; (3) Division of General Internal Medicine, University Health Network, 200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4; (4) Institute for Technology Assessment and Department of Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America