1 1 School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan, Republic of China.
2 2 Department of Otorhinolaryngology-Head and Neck Surgery, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan, Republic of China.
3 3 Department of Otolaryngology, Cheng Hsin General Hospital, Taipei, Taiwan, Republic of China.
4 4 School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan, Republic of China.
5 5 Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China.