1. 1) Whipple, A. O.: The problem of portal hypertension in relation to the hepatosplenopathies. Ann. Surg., 1945, 122: 449–475.
2. 2) Blakemore, A. H. and Lord, Jr. J.W.: The technic of using vitallium tubes in establishing portacaval shunts for portal hypertension. Ann. Surg., 1945, 122: 476–489.
3. 3）植田俊夫，磯部義憲，筒井竹人，他：経回結腸静脈胃・食道静脈瘤閉塞術．臨床外科，1979, 34: 685–694.
4. 4) Celis, A., Espinosa, J. F. and Fregoso, J. A.: Radiological diagnosis of the Cruveilhier-Baumgarten syndrome. Gastroenterology, 1948, 11: 253–255.
5. 5) Carbalhaes, O. G.: Portography: a preliminary report of a new technique via the umbilical vein. Clinical proceedings-children’s hospital of the district of Columbia. 1959, 15: 120–122.