1. Blackpool Victoria Hospital, Blackpool, UK
2. School of Medicine, University of Central Lancashire, Preston, UK
3. Faculty of Medicine, University of Lisbon, Lisboa, Portugal
4. Alabama College of Osteopathic Medicine, Dothan, AL, USA
5. Texas Children’s Hospital and Baylor College of Medicine, Houston, TX, USA
6. UCL Medical School, University College London, London, UK
7. RCSI University of Medicine and Health Sciences, Dublin, Ireland
8. School of Medicine, Keele University, UK
9. Medical School, University of Michigan, USA