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Mukherjee D, Kumar NS, Khatua T, Mukherjee PK. Rapid validated HPTLC method for estimation of betulinic acid in Nelumbo nucifera (Nymphaeaceae) rhizome extract. Phytochemical Analysis. 2010 Oct 28;21(6):556–60. doi: 10.1002/pca.1232. |