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. Author manuscript; available in PMC: 2022 Feb 28.
Published in final edited form as: Eur J Pharm Biopharm. 2018 May 29;129:162–174. doi: 10.1016/j.ejpb.2018.05.033

Fig. 1.

Fig. 1.

Different segments of the upper GI tract, representing the fundus, body and antrum (i.e., the stomach) followed by the transfer to the duodenum (i.e., the upper small intestine).