EXPERIMENTAL EVALUATION OF ACUTE AND CHRONIC INTRAGASTRIC TOXICITY AND CUMULATIVE PROPERTIES OF THE DRUG MODIFIED CHITOSAN - Asilova, S.U.; Akramov, V.R.; Gulyamov, E.B.; Mirzaev, A.B.; Nazarov, R.B. (Toshkent tibbiyot akademiyasi axborotnomasi, 2020)