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The therapeutic effect of CBD/FD nanomicelles on tongue ulcers after in situ dripping. (A) Drug administration and sampling. (B) Change in the ulcer area over time (n = 5). Data are shown as mean ± SD. (C) Tongue ulcer images at 2 and 4 days post-administration. (D) Hematoxylin and eosin images of tongue ulcers. Solid lines indicate the ulcer boundary, and dotted lines indicate the epithelial-stromal boundary. Scale bar, 100 μm.
