A structure-activity relationship (SAR) study of neolignan compounds with anti-schistosomiasis activity - Alves, Cláudio Nahum; Macedo, Luiz Guilherme Machado de; Honório, Káthia Maria; Camargo, Ademir João; Santos, Lourival S.; Jardim, Iselino N.; Barata, Lauro, E. S.; Silva, Alberico Borges Ferreira da (Journal of the Brazilian Chemical Society, 2002)