1. Internal Medicine and Pediatrics, University of Michigan Medical School, Ann Arbor, MI, USA
2. Department of Pediatrics, Texas Children’s Hospital and Baylor College of Medicine, Houston, TX, USA
3. Family Medicine and Public Health, University of California San Diego School of Medicine, La Jolla, CA, USA
4. RCSI University of Medicine and Health Sciences, Dublin, Ireland
5. McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA
6. School of Medicine, University of Leicester, Leicester, UK
7. Blackpool Victoria Hospital, Blackpool, UK
8. School of Medicine, University of Central Lancashire, Preston, UK