Guarana (Paullinia cupana Kunth), marapuama (Ptychopetalum olacoides Benth.), gentian (Gentiana lutea L.), quassia (Quassia amara L.) and their properties: a brief review. RSD [Internet]. 2022 Jan. 23 [cited 2025 Dec. 6];11(2):e21711224592. Available from: https://rsdjournal.org/rsd/article/view/24592