1 Department of Otolaryngology, Keck School of Medicine, University of Southern California, Los Angeles, USA. Electronic address: sinha@med.usc.edu.
2 Department of Otolaryngology, Keck School of Medicine, University of Southern California, Los Angeles, USA; Department of Molecular Microbiology & Immunology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, USA.
3 Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, USA. Electronic address: dechenli@usc.edu.