1Semm K. Endoscopic appendectomy[J]. Endoscopy, 1983,15: 59-64.
2Pedersen AG, Petersen OB, Wara P, et al. Randomized clinical trial of laparoseopic versus open appendicectomy[J]. Br J Surg, 2001,88:200-205.
3Guller U, Hervey S,Purves H, et al. Laparoscopic versus open appendectomy: outcomes comparison based on a large administrative database[J]. Ann Surg, 2004,239(1) :43- 52.