1. Department of Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
2. Department of Orthopaedic Surgery, Columbia University Medical Center, New York, New York, USA
3. Mayo Clinic School of Medicine, Rochester, Minnesota, USA
4. Department of Health Policy & Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
5. Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
6. Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA