1. Kaiser Fontana Medical Center , Fontana , CA , USA
2. Department of Emergency Medicine , St. John’s Riverside Hospital , Yonkers , NY , USA
3. 33264 Oklahoma State University College of Osteopathic Medicine , Tulsa , OK , USA
4. Northwell Lenox Hill Hospital , New York , NY , USA
5. 477020 Arkansas College of Osteopathic Medicine , Fort Smith , AR , USA
6. Touro College of Osteopathic Medicine , Middletown , NY , USA