4Chung RS, Rowland DY, Li P, et al. A meta-analysis of randomized controlled trials of laparoscopic versus conventional appendectomy[J]. Am J Surg,1999,177(3) :250-256.
5Garhutt JM, Soper NJ, Shannon WD. et al. Meta-analysis of randomized controlled trials comparing laparoscopic and open appendectomy [ J ]. Surg Laparosc Endosc, 1999,9 ( 1 ) : 17-26.
6Golub R, Siddiqul F, Pohl D. Laparoscopic versus open appendectomy : a metaanalysis [ J ]. J Am Coll Surg, 1998,186 ( 5 ) : 545- 553.
7Sauerland S,Lefering It, Holthausen U, et al. Laparoscopic vs conventional appendectomy: a recta-analysis of randomized controlled trials [ J ]. Arch Surg, 1998,383 (5) :289-295.
8Giuliano V, Giuliano C, Pinto F, et al. Chronic appendicitis "syndrome" manifested by an appendicolith and thickened appendix presenting as chronic right lower abdominal pain in adults [ J ]. Emerg Radiol,2006,12( 3 ) :96-98.
9Blanco JA, Casasa JM, Castellvi A, et al. Laparoscopy in chronic abdominal pain in children [ J ]. Cir Pediatr, 2005,18 (2) :61- 64.
10Marzouk M, Khater M, Elsadek M,et al. Laparoscopic versus open appendectomy:a prospective comparative study of 227 patients [ J ]. Surg Endosc, 2003,17 ( 5 ) : 721-724.
