Souza, C. P. de .; Rodrigues, M. de S. .; Azevedo, M. de L. L. de .; Araujo, . N. . Comparative Study of Two Techniques for Obtention of Miracidia of Schistosoma Mansoni from Human Feces. Rev. Inst. Med. Trop. São Paulo 1981, 23 (6), 251-255.