1. Dissolving gallstones;Fromm;Adv Intern Med,1988
2. Gallstones;Schoenfield,1988
3. Non-surgical treatment of gallstones: cheno-versus ursodeoxycholic acid;Barbara,1988
4. Retrospective comparison of “cheno” and “urso” in the medical treatment of gallstones;Meredith;Gut,1982
5. Biliary lithotripsy: what will be the issues?;Ferrucci,1989