1. Gallstones after 70. Requiescat in pace;Amberg;Geriatrics,1965
2. The age factor in the mortality rate of patients undergoing surgery of the biliary tract;Glenn;Surg Gynecol Obstet,1955
3. Cholecystectomy in the aged;Ibach;Surg Gynecol Obstet,1968
4. Antibiotic treatment of biliary sepsis;Keighley;Surg Clin North Am,1975
5. The clinical and pathologic correlations in mechanical biliary obstruction and acute cholangitis;O'Connor;Ann Surg,1982