Effect of the hydroethanolic extract from Echinodorus grandiflorus leaves and a fraction enriched in flavone-C-glycosides on antigen-induced arthritis in mice - Garcia Ede, F; de Oliveira, M A; Candido, L C; Coelho, F M; Costa, V V; Queiroz-Junior, C M; Boff, D; Amaral, F A; de Souza Dda, G; Teixeira, M M; Braga, F C (Planta Med, 2016)