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Cluster image map (CIM) analysis of the antioxidant and anti-enzymatic activity data of comfrey roots (red color: high activity, blue color: low activity). ABTS, 2,2′-azino-bis(3-ethylbenzothiazoline) 6-sulfonic acid; AChE, acetylcholinesterase; BChE, butyrylcholinesterase; CUPRAC, cupric ion reducing antioxidant capacity; DPPH, 1,1-diphenyl-2-picrylhydrazyl; FRAP, ferric ion reducing antioxidant power; MCA, metal chelating activity; PDA, phosphomolybdenum activity.
