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. 2022 Jan 20;9:808905. doi: 10.3389/fcell.2021.808905

FIGURE 1.

FIGURE 1

(A) Schematic diagram of the experimental design. (B) Diagram of the experimental process before sample collection, among which intranasal delivery schema can be found in Rhea EM et al. (2020). DOI:10.3390/pharmaceutics12111120.