Retraction notice to "Up-regulating ribonuclease inhibitor inhibited epithelial-to-mesenchymal transition and metastasis in murine melanoma cells" [Int. J. Biochem. Cell Biol. 44 (6) (2012) 998–1008]. (December 2021) - Pan, Xiangyang; Xiong, Dongmei; Yao, Xue; Xin, Yu; Zhang, Luyu; Chen, Junxia