1. Division of Palliative Care Shinshu University Hospital Shinshu Cancer Center, Shinshu University Nagano Japan
2. Department of Anesthesiology Tokyo Medical University Tokyo Japan
3. Department of Anesthesiology Shiga University of Medical Science Shiga Japan
4. Clinic for Internal Medicine, Gastroenterology and Japanese Medicine Graefelfing/Munich Germany
5. Dokkyo Medical University School of Medicine Tochigi Japan