Chemical Composition and In Vitro Antiplasmodial Activity of the Total Alkaloids of the Bulbs of Two Amaryllidaceae Species from Northern Peru, Soto-Vásquez, Marilú Roxana, Pinedo Madeleine Vanessa Ho, Tallini Luciana R., and Bastida Jaume , Pharmacognosy Journal, July 2021, Volume 13, Issue 4, p.1046-1052, (2021)