Wang, D., Xu, X., Zhang, K., Sun, B., Wang, L., Meng, L., … Sun, H. Codelivery of doxorubicin and MDR1-siRNA by mesoporous silica nanoparticles-polymerpolyethylenimine to improve oral squamous carcinoma treatment. International Journal of Nanomedicine, 13, 187-198. https://doi.org/10.2147/IJN.S150610 (Original work published 2018)