1. Department of Otolaryngology–Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, USA
2. Department of Otorhinolaryngology–Head and Neck Surgery, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
3. Department of Nursing, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, USA
4. Department of Pulmonary Care, Thomas Jefferson University Hospitals, Philadelphia, Pennsylvania, USA