1. McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
2. Emergency Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
3. Faculty of Medicine, University of Lisbon, Lisbon, Portugal
4. Royal College of Surgeons, University of Medicine and Health Sciences, Dublin, Ireland
5. San Diego School of Medicine, University of California, San Diego, CA, USA
6. School of Medicine, University of Leicester, Leicester, UK
7. Baylor College of Medicine, Texas Children’s Hospital, Houston, TX, USA
8. Blackpool Victoria Hospital, Blackpool, UK
9. School of Medicine, University of Central Lancashire, Preston, UK