TACTILE SENSOR IS USEFUL FOR ESTIMATING LIVER HARDNESS AND LIVER FIBROSIS COMPARED WITH ULTRASONOGRAPHY AND COMPUTED TOMOGRAPHY SHINJI OHOKI, KENSUKE KUMAMOTO, TADASHI TAKAWA, MOTOKI SASSA, Ikemi Nakamura, Tomoyuki Monma, SADAO OMATA, HIDEO SAKUMA, Yukino Watanabe, Teruhide Ishigame, SHIGEFUMI SUZUKI, SEIICHI TAKENOSHITA, T. Ono, T. Yazawa, Y. Hatakeyama • 2014