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a Finger print profile of hydroalcoholic extract of Indian propolis (HEIP) at the wavelength of 365 nm. b Finger print profile of hydroalcoholic extract of Indian propolis (HEIP) at the wavelength of 590 nm. c HPTLC chromatogram of quercetin standard. d HPTLC chromatogram of hydroalcoholic extract of Indian propolis (HEIP) for quercetin
