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Ferreira, E.G.; Wilke, D.V.; Jimenez, P.C.; Portela, T.A.; Silveira, E.R.; Hajdu, E.; Pessoa, C.; de Moraes, M.O.; Costa-Lotufo, L.V. (2007). Cytotoxic activity of hydroethanolic extracts of sponges (Porifera) collected at Pedra da Risca do Meio Marine State Park, Ceará State, Brazil. pp. 313–318. In: Custódio, M.R., Lôbo- Hajdu, G., Hajdu, E. & Muricy, G. (Eds.), Porifera Research: Biodiversity, Innovation and Sustainability. Série Livros, 28, Museu Nacional, Rio de Janeiro,.