1. ERCP and fine needle percutaneous transhepatic cholangiography in the diagnosis of biliary tract disease;Benjamin,1978
2. Complications of endoscopic retrograde cholangiopancreatography (ERCP). A study of 10,000 cases;Bilbao;Gastroenterology,1976
3. Biliary tract obstruction;Blumgart,1978
4. Endoscopy and retrograde choledochopancreatography in the diagnosis of the patient with jaundice;Blumgart;Surg. Gynecol. Obstet.,1974
5. Endoscopy and retrograde choledochopancreatography in the diagnosis of post-cholecystectomy symptoms;Blumgart;Bull. Soc. Int. Chir.,1975