Ke Z, Guo H, Zhu X, Jin Y, Huang Y. Efficient Peroral Delivery of Insulin via Vitamin B12 Modified Trimethyl Chitosan Nanoparticles. J Pharm Pharm Sci [Internet]. 2015 May 10 [cited 2025 Apr. 5];18(2):155-70. Available from: https://journals.library.ualberta.ca/jpps/index.php/JPPS/article/view/23425