γ-scintigraphic evaluation of enteric-coated capsules containing chitosan-brilliant blue gel beads as hydrophilic model for colon drug delivery von Avadi, M.R., Ghassemi, A.H., A.M.M.Sadeghi, Beiki, D., Akbarzadeh, A., Ebrahimnejad, P., Shahhosseini, S., Bayati, Kh, Rafiee-Tehrani, M.

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