2Illig KA, Schmidr E, Cavanaugh J, et al. Are prophylactic antibiotics required for elective laparoscopic cholecystectomy. J Am Coll Surg, 1997,184(4) :353~356.
3Lewis RT, Weigand FM, Mamzza J, et al. Should antibiotic prophylaxis be used routinely in surgical procedure. Surgery, 1995,118:742~737.
4Lippert H, Gastinger J. Antimicrobial prophylaxis in laparoscopic and conventional cholecystectomy. Chemotherapy, 1998,44 (5): 35 5~363.