Elderly ATL patients in ageing society of Japan by Nagakura Shoichi, Harada Naoko, Sakai Tatsunori, Inoue Yoshiko, Nakamura Miki, Kawakita Toshio, Matsui Takahiro, Higuchi Yusuke, Pornkuna Ratiorn, Takemoto Shigeki, Hidaka Michihiro, Kiyokawa Tetsuyuki, Kawano Fumio