1. Department of Radiation Oncology MacKay Memorial Hospital Taipei Taiwan
2. Department of Medicine MacKay Medical College New Taipei City Taiwan
3. Department of Biomedical Imaging and Radiological Sciences National Yang‐Ming University Taipei Taiwan
4. Department of Death Care Service MacKay Junior College of Medicine, Nursing, and Management New Taipei City Taiwan
5. Department of Otorhinolaryngology MacKay Memorial Hospital Taipei Taiwan
6. Department of Oral and Maxillofacial Surgery MacKay Memorial Hospital Taipei Taiwan