1. Experience with 1356 cases of cholecystitis and cholelithiasis;Colcock;Surg. Gynec. & Obst.,1955
2. Gallstones in patients under thirty years of age;Bearse;New England J. Med.,1941
3. Acute cholecystitis: its surgical treatment: report of 108 cases;Borland;Surgery,1952
4. Biliary tract surgery in the aged patient;Ignatius;Gastroenterology,1958
5. Acute cholecystitis;Wallace;Arch. Surg.,1941