1. School of Medicine, Loma Linda University, 11175 Campus St., Loma Linda, CA 92350, USA
2. Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, 11234 Anderson St., Suite 2586A, Loma Linda, CA 92354, USA
3. Department of Cardiothoracic Surgery, Loma Linda University Medical Center, 11234 Anderson St., Suite 1637, Loma Linda, CA 92354, USA