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HPLC chromatograms of triterpenes in extract of GLK. (1) ganoderic acid C2; (2) ganoderic acid G; (3) Ganoderic acid C6; (4) ganoderic acid B; (5) ganoderenic acid A; (6) ganoderic acid A; (7) lucideric acid A; (8) ganoderenic acid D and (9) ganoderic acid C1.
