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HPLC-UV chromatogram at 325 nm of the (A) Viscum album dry extract (VA_DE), (B) Viscum album ethanolic dry extract hydrogel (VA_DEH), and (C) vector control (VC, hydrogel without extract). Peaks 1, 2, and 3 correspond to 3-O-caffeoylquinic acid, 4-O-caffeoylquinic acid, and 5-O-caffeoylquinic acid, respectively.
