Evaluation of the schistosomicidal activity of the steroidal alkaloids from Solanum lycocarpum fruits - Miranda, Mariza Abreu; Magalhães, Lizandra Guidi; Tiossi, Renata Fabiane Jorge; Kuehn, Christian Collins; Oliveira, Luiz Gustavo Rodrigues; Rodrigues, Vanderlei; McChesney, James Dewey; Bastos, Jairo Kenupp (Parasitology Research, 2013)