Cholesterol derivative-based liposomes for gemcitabine delivery: preparation, in vitro , and in vivo characterization. - Li, Tang; Chen, Li; Deng, Yihui; Liu, Xinrong; Zhao, Xiaoyun; Cui, Yiwen; Shi, Jia; Feng, Rui; Song, Yanzhi (Drug Development & Industrial Pharmacy, 2017)