2020. Stability of hydroalcoholic extracts of two species of guaco; Mikania glomerata SPRENG. and Mikania laevigata SCHULTZ. (Asteraceae), by UHPLC-MS. Brazilian Journal of Pharmaceutical Sciences. 56, (Dec. 2020), e17194. DOI:https://doi.org/10.1590/s2175-97902020000217194.