1. Noncalculous cholecystitis;Cole;Surgery,1938
2. Non-calculus cholecystitis;Engel;Rocky Mt Med J,1968
3. Acute acalculous cholecystitis;Hilton;Surgery,1968
4. Acute cholecystitis without gallbladder stones;Hoerr;Amer J Surg,1966
5. Acalculous cholecystitis;Munster;Amer J Surg,1967