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Methanolic extract of Mitragyna speciosa Korth leaf exhibits place preference only at higher doses in mice Vijeepallam K, Pandy V, Murugan DDevi, Kuppusamy MNaidu. Methanolic extract of Mitragyna speciosa Korth leaf exhibits place preference only at higher doses in mice. Pharmacognosy Magazine. 2020;16(71):449-454.