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Triterpenes from Rubus parkeri root Chemical constituents from roots of Potentilla anserine Chemical constituents in Potentilla kleiniana Triterpene acids from roots of Symplocos laurina Studies on the Chemical Constituents of the Root of Boehmeird nivea (L) Gaud. Studies on the Chemical Constituents of Rosa laev igata Michx. Chemical constituents in Potentilla kleiniana Study on chemical constituents from Potentilla supina Study on chemical constituents from Potentilla supina