The effect of PPP2CA expression on the prognosis of patients with hepatocellular carcinoma and its molecular biological characteristics - Liang, Jingchang; Huang, Yu; Yang, Chenglei; Huang, Shen; Xie, Jinlong; Nong, Xiang; Liu, Jianyong; Zhang, Yumei; Zhang, Zhiming (Journal of Gastrointestinal Oncology, 2021)