1 Division of Otolaryngology - Head and Neck Surgery, Department of Surgery, Allegheny Health Network, Pittsburgh, Pennsylvania, USA.
2 Department of Otolaryngology - Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, California, USA.
3 Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
4 Rhinology and Endoscopic Skull Base Surgery, Department of Otolaryngology - Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, California, USA.
5 Rhinology and Endoscopic Skull Base Surgery, Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.