1. Center for Kampo Medicine Tokyo Medical University Hospital Tokyo Japan
2. Department of General Medicine and Primary Care Tokyo Medical University Hospital Tokyo Japan
3. Department of Anesthesiology Tokyo Medical University Hospital Tokyo Japan
4. Department of Otolaryngology Tokyo Medical University Ibaraki Medical Center Ibaraki Japan
5. Department of General Medicine and Primary Care Tokyo Medical University Hachioji Medical Center Tokyo Japan
6. Department of Medical Education Tokyo Medical University Tokyo Japan