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Trevisan Secretti L, Pereira A, Baggio Gnoatto SC, Maronesi Bueno L, Lukasewics Ferreira P, Froehlich PE. Simple method for simultaneous quantification of two new derivatives of betulinic and ursolic acids with antimalarial activity by RP-HPLC-UV-CAD. Drug Anal. Res. [Internet]. 2020 Dec. 18 [cited 2026 Sep. 14];4(2):31-9. Available from: https://seer.ufrgs.br/index.php/dar/article/view/108249