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(a) High-performance thin-layer chromatographic chromatogram of standard bergenin (4000 ng/spot), 276 nm wavelength showing an Rf value of 0.28; (b) high-performance thin-layer chromatographic chromatogram of methanolic extract of Bergenia ligulata; (c) high-performance thin-layer chromatographic chromatogram of acetone extract of Bergenia ligulata
