Bhatta R, Salim Hossain M, Banik S, Mizanur Rahman Moghal M, Mamun Or Rashid M, Akter M. Swelling and mucoadhesive behavior with drug release characteristics of gastoretentive drug delivery system based on a combination of natural gum and semi-synthetic polymers. Marmara Pharm J. 2018; 22(2): 286-298. http://dx.doi.org/10.12991/mpj.2018.66