1. WOODWARD ER; The stomach and duodenum in manual of preoperative and post-operative care, American College os Surgeous, 1983.
2. DEANES, YOUNGSD, BURDOND, al: Gastric Microfiora in Infection in surgery. Edited by M Watts, 1981.
3. WONG WFL, ONG GB, LAM KH: Esophageal microbial flora in carcinoma of esophagus in Infection in Surgery, Edited by M Watts, 1981.
4. BAUER AW, KIRBY WM, SHERRIS JC, al: Antibiotic Susceptibility Testing by a Standardized single Disk Method. AM. J CLIN PATHOL 45: 493, 1966.
5. GORBACH SL, BARTLETT JG: Anaerobic Infections N ENGL J MED 290: 117, 1237, 1289, 1974.