4Kosumi T, Kubota A, Usui N,et al. Laparoscopie ovarian eystectomy using a single umbilical puncture method [ J]. Surg Laparosc Endosc Percutan Tech, 2001, 11 (1) :63 -65.
5Alessio A, Piro E, Tadini B ,et al. One-trocar transumbilical laparoscopic-assisted appendectomy in children:our experience[J]. Eur J Pediatr Surg, 2002, 12 (1) : 24 -27.
6Raman JD, Bensalah K, Bagrodia A, et al. Laboratory and clinical development of single key hole umbilical nephrectomy [ J ]. Urology, 2007, 70 : 1039 - 1042.
7Bucher P, Pugin F, Morel P. Single port access laparoscopic right hemicolectomy[ J ]. Int J Coloreetal Dis, 2008, 23(10) :1013 -1016.
2Podolsky ER,Curcillo Ⅱ PG,Rottman S J,et al.Single port access (SPA) surgery initial experience of a novel minimal access approach applied across surgical specialties[J].Surg Endosc,2008,22(Suppl):s172.
3Wewets ME,Lowe NK.A critical review of visual analogue scales in the measurement of clinical phenomena[J].Res Nuts Health Research In Nursing and Health,1990,13 (4):227-236.
5J Binner The potential of microwave processing for ceramics.Materials World,1993, 1(3):152-155
6Wewers ME, lowe NK. A cfitica; of visual analogue scales in the measurement of clinical phenomena, res nurs Health Research In Nursing and Health, 1990,13 (4) :227 - 236.