1. Department of Emergency Medicine, Arrowhead Regional Medical Center, Colton, CA, USA
2. College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, USA
3. Western Governors University, Salt Lake City, UT, USA
4. College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
5. Department of Medicine, Loma Linda University, CA, USA