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Guarana (Paullinia Cupana Kunth), Marapuama (Ptychopetalum Olacoides Benth.), Gentian (Gentiana Lutea L.), Quassia (Quassia Amara L.) and Their Properties: A Brief Review. RSD 2022, 11 (2), e21711224592. https://doi.org/10.33448/rsd-v11i2.24592.