Anticrotalic and antitumoral activities of gel filtration fractions of aqueous extract from Tabernaemontana catharinensis (Apocynaceae) - Almeida, Lucilene de; Cintra, Adélia Cristina Oliveira; Veronese, Elen L. G.; Nomizo, Auro; Franco, João José; Arantes, Eliane Candiani; Giglio, José Roberto; Sampaio, Suely Vilela (Comparative Bichemistry and Physiology Part C, 2004)