1. Cannulation of the papilla of Vater by endoscopy and retrograde cholangiopancreatography (ERCP);Cotton;Gut,1972
2. Slow drip infusion cholangiography in children;Chaumont;Ann. Radiol,1974
3. Radiological diagnosis of cholelithiasis in infancy and childhood;Fortier-Beaulieu;Ann. Radiol.,1973
4. Non-surgical, percutaneous transhepatic cholangiography - diagnostic significance in medical problems of the liver;Okuda;Am. J. dig. Dis.,1974
5. Choledochus cyst - rontgenographic techniques;Rosenfald;Radiology,1975