1. Aufses, A. H. JR., F. Schaffner, W. S. Rosenthal, and B. E. Herman: Portal, venous pressure in „pipestem“ fibrosis of the liver due to schistosomiasis. Amer. J. Med. 27 807–810, (1959).
2. Becker, S., J. J. Puigbo, P. Blanco, V. Casolta, R. Salomon, C. G. Yepez, and J. J. Valencia-Parparcen: Estudio hemodinamico del sindrome de hiper tension portal con especial referencia a la manometria simultanea intraesplenica y suprahepatica. G.E.N. 16, 251 (1961).
3. Bradley, S. E.: Clinical aspects of hepatic vascular physiology in liver injury. In Transactions of the 9th Conference on Liver Injury. 2: 71–90. New York: Jesiah Macy JR. Foundation 1951.
4. Bradley, S. E., F. J. Ingelfinger, A. E. Groff, and G. P. Bradley: Estimated hepatic blood flow and hepatic venous oxygen content in cirrhosis of the liver. Proc. Soc. Exp. Biol. 67, 206–207 (1948).
5. Coutinho, A.: Patologia da esquistossomose, Mesa Redonda na Segunda Jornada Brazileira da Esquistossomose. Belo Horizonte: Imprensa Official 1955.