Levi, G. C. .; Amato Neto, V. .; Konichi, S. R. .; Stefani, H. N. V. . Treatment of Ascariasis in a Rural Area: Comparative Study of Single Dose Efficacies of Piperazine Hexahydrate, Tetramisole and Pyrantel Pamoate. Rev. Inst. Med. Trop. São Paulo 1972, 14 (6), 392-396.