1. Endoscopy of the Upper Gastrointestinal Tract;Blumgart,1975
2. A case of lithotomy of the gallbladder;Bobbs;Trans. Indiana State Med. Soc.,1868
3. Immediate suture of the gall ducts and the gallbladder after the extraction of stones, with cases;Elliot;Trans. Am. Surg. Assoc.,1895
4. Retention from displacement, bending and valve-formation (oblique insertion) in the biliary tract;Fenger;Trans. Am. Surg. Assoc.,1896