1. 1) Foundation for Promotion Cancer Research, “Cancer Statistics in Japan 2008,” ed. by The Editorial Board of the Cancer Statistics in Japan, 2008.
2. 2) Adachi I., Pharm. Med., 20, 75-79 (2002).
3. 3) Akai N., Ikeda T., Hamabe W., Tokuyama S., Jpn. J. Pharm. Palliat. Care Sci., 1, 109-115 (2008).
4. 4) Morita T., Miyashita M., Shibagaki M., Hirai K., Ashiya T., Ishihara T., Matsubara T., Miyoshi I., Nakaho T., Nakashima N., Onishi H., Ozawa T., Suenaga K., Tajima T., Akechi T., Uchitomi Y., J. Pain Symptom Manage., 31, 306-316 (2006).
5. 5) Sato K., Miyashita M., Morita T., Suzuki M., Palliative Care Research, 2, 101-111 (2007).