Ma, Xia, Min Ning, Yuxi Chen, Lei Ju, Haiyan Yu, and Shiwen Chen. “Preparation Optimized and Sustained Release Behavior of Nifedipine-G-Polyglutamic Acid Chitosan Nanoparticle”. Asian Journal of Chemistry 27, no. 1 (December 29, 2014): 233–238. Accessed July 19, 2024. https://asianpubs.org/index.php/ajchem/article/view/27_1_51.