Usefulness of the Measurement of Psoas Muscle Volume for Sarcopenia Diagnosis in Patients with Liver Disease oleh Takushi Manabe, Chikara Ogawa, Kei Takuma, Mai Nakahara, Kyoko Oura, Tomoko Tadokoro, Koji Fujita, Joji Tani, Mitsushige Shibatoge, Asahiro Morishita, Masatoshi Kudo, Tsutomu Masaki