1. Department of Pediatrics, University of Thessaly, Faculty of Medicine, Larissa, Greece
2. Laboratory of Neuromuscular and Cardiovascular Study of Motion, Physiotherapy Department, University of West Attica, Greece
3. Department of Orthopaedic Surgery, University of Thessaly, Faculty of Medicine, Larissa, Greece
4. 1st Pediatric Clinic, University of Athens, “Agia Sofia” Children’s Hospital, Athens, Greece
5. Population Health Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK