1. Department of Otolaryngology, Head and Neck Surgery, Keck Medicine of USC, University of Southern California, Los Angeles, California, USA.
2. Pacific Neuroscience Institute, Providence St. Johns Medical Center, Santa Monica, California, USA.
3. Department of Otolaryngology, Division of Facial Plastic Surgery, University of South Florida, Tampa, Florida, USA.
4. Rejuva Medical Aesthetics, Los Angeles, California, USA.