In vitro and in vivo antileishmanial activities of a brazilian green propolis extract - Pontin, Karina; Silva Filho, Ademar Alves da; Santos, Fransérgio Francisco dos; Silva, Márcio Luís Andrade e; Cunha, Wilson Roberto; Nanayakkara, N P Dhammika; Bastos, Jairo Kenupp; Albuquerque, Sérgio de (Parasitology Research, 2008)