Trypanocidal and antifungal activities of p-hydroxyacetophenone derivatives from Calea uniflora (Heliantheae, Asteraceae) - Nascimento, Andréa Mendes do; Salvador, Marcos José; Cândido, Regina Célia; Albuquerque, Sérgio de; Oliveira, Dionéia Camilo Rodrigues de (Journal of Pharmacy and Pharmacology, 2004)