1. Department of Surgery, VA Greater Los Angeles Healthcare System, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
2. Department of Head and Neck Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
3. Departments of Anatomy, Physiology and Genetics, Molecular and Cell Biology, Uniformed Services University, Bethesda, MD, USA
4. Karmanos Cancer Institute, Wayne State University, Detroit, MI, USA
5. Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, CA, USA