A monomer purified from Paris polyphylla (PP-22) triggers S and G2/M phase arrest and apoptosis in human tongue squamous cell carcinoma SCC-15 by activating the p38/cdc25/cdc2 and caspase 8/caspase 3 pathwaysJun-Yu Ke, Jianwei Jiang, Ruisong Gong et al.|Tumor Biology|2016Cited by 20