Superiority of charged particle therapy in treatment of hepatocellular carcinoma (Regarding Qi W.X. et al. charged particle therapy versus photon therapy for patients with hepatocellular carcinoma: A systematic review and meta-analysis). Issue 2 (February 2016) - Yamazaki, Hideya; Nakamura, Satoaki; Suzuki, Gen; Aibe, Norihiro; Yoshida, Ken