Extracellular ubiquitin inhibits the apoptosis of hepatoma cells via the involvement of macrophages - Cai, Jiajing; Qian, Xuemeng; Qi, Qi; Han, Jia; Zhu, Xinfang; Zhang, Qi; Xia, Rong (Translational Cancer Research; Vol 9, No 4 (April 30, 2020): Translational Cancer Research, 2020)