Antileishmanial activity and ultrastructural changes of sesquiterpene lactones isolated from Calea pinnatifida (Asteraceae) - Caldas, Lhais Araujo; Yoshinaga, Meire L; Ferreira, Marcelo J. P; Lago, Joao H. G; Souza, Adriana B. de; Laurenti, Marcia Dalastra; Passero, Luiz Felipe D; Sartorelli, Patricia (Bioorganic chemistry, 2019)