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In Vivo Imaging. Mice were imaged at different time intervals after inhalation of a plasmid bearing RFP under the CMV promoter
(A–E) 6, 12, 18, 24, and 48 h after inhalation. (F) The animal that received control particles without DNA at 6 h. (G) One animal showed signal in the nares and buccal regions and only in the left lung at the 12 h time point (corresponding to the animal shown in B). (H) Control animal, the same as shown in (F), at 6 h.
