1. The Surgical Technique of Abdominal Operations;Spivac,1946
2. Drainage following cholecystectomy;Williams;Br J Surg,1972
3. Cholecystectomy without drainage;Kambouris;Surg Gynecol Obstet,1973
4. Cholecystectomy with and without drainage;Goldberg;Am J Surg,1975
5. Drain fever, a complication of drainage after cholecystectomy;Myers;Surgery,1962