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. Author manuscript; available in PMC: 2009 Mar 18.
Published in final edited form as: Eur J Pharmacol. 2007 Mar 30;566(1-3):58–66. doi: 10.1016/j.ejphar.2007.03.037

Fig. 4.

Fig. 4

Electron spin resonance (ESR) spectra of DMPO–OOH and superoxide radical-scavenging activity of different flavonoids: wogonin, baicalin, procyanidin B2, baicalein, and catechin at the same concentration of 25 μM.