1. Atkinson, M., andJ. C. Goligher: Lancet1960 I, 461.
2. Berchthold, R.: Helv. chir. Acta32, 321 (1965).
3. Boeremer, J.: Arch. Chir. Nederland1949 I, 253.
4. Britton, R. C., andE. K. Shirey: Arch. Surg.84, 43 (1962).
5. Child, Charloes G.: The Liver and portal Hypertension. Philadelphia, London: W. B. Saunders 1964.