1. Laparoscopic and minilaparotomy cholecystectomy: a randomized trial comparing postoperative pain and pulmonary function;McMahon;Surgery,1994
2. Immune function in patients undergoing open vs laparoscopic cholecystectomy;Redmond;Arch Surg,1994
3. Laparoscopy-assisted Billroth I gastrectomy;Kitano;Surg Laparosc Endosc,1994
4. Curative laparoscopic surgery for early gastric cancer: eight years experience;Ohgami;Nippon Geka Gakkai Zasshi,2000
5. Laparoscopy-assisted distal gastrectomy for malignant lymphoma;Yasuda;Surg Laparosc Endosc Percutan Tech,2001