Hepatitis E during Tocilizumab Therapy in a Patient with Rheumatoid Arthritis: Case Report and Literature Review oleh Hidekazu Ikeuchi, Kana Koinuma, Masao Nakasatomi, Toru Sakairi, Yoriaki Kaneko, Akito Maeshima, Yuichi Yamazaki, Hiroaki Okamoto, Toshihide Mimura, Satoshi Mochida, Yoshihisa Nojima, Keiju Hiromura