Ling, S. B., D. G. Sun, B. Tang, C. Guo, Y. Zhang, R. Liang, and L. M. Wang. 2012. “Knock-down of USP22 by Small Interfering RNA Interference Inhibits HepG2 Cell Proliferation and Induces Cell Cycle Arrest”. Cellular and Molecular Biology 58 (2):1803-08. https://www.cellmolbiol.org/index.php/CMB/article/view/568.