5Oboyle A L, Oboyle J D, Calhoun B,et al. Pelvic organ support in pregnancy and postpartuml[J]. Int Urogyneeol Pelvic Floor Dysfunct,2005,16(1) :69.
6Hendrix S L, Clark A, Nygaard I, et al. Pelvic organ pro- lapse in the Women" Health Initiative:gravity and gravidi- ty[J]. Am J Obstet Gynaeeol, 2002,186 : 1160-1166.
7Lang J H, Zhu L, Sun Z J,et al. Estrogen levels and es- trogen receptors in patients with stress urinary inconti- nence and pelvic organ prolapsel[J]. Int J Gynaecol Ob- stet,2003,80(1) :35-39.
8Arya L A, Novi J M, Shaunik A,et al. Pelvic organ pro- lapse, constipation, and dietary fiber intake in women: a case-control study[J]. Am J Obstet Gynaecol, 2005, 192 (5) : 1687.
9Klingele C J, Bharucha A E, Fletcher J G,et al. Pelvic organ prolapse in defecatory disorders[J]. Bstet Gynae- col, 2005,106 (2): 315-320.
10Stoker J, Bartram C I, Halligan S. Imaging of the posteri- or pelvic floor[J]. Eur Radiol,2002,12:779-788.
4Olsen A,Smith VJ,Bergstrom JO,et al.Epidemiology of surgically managed pelvic organ prolapse and urinary incontinence.Obstet Gynecol,1997,89:501-506.
5Hanzal E,Berger E,Koellbl H.Levator ani muscle morphology and recurrent genuine stress incontinence.Obstet Gynecol,1993,81:426-429.
6Weidner AC,Barber MD,Visco AG,et al.Pelvic muscle electromyography of levator ani and external anal sphincter in nulliparous women and women with pelvic floor dysfunction.Am J Obstet Gynecol,2000,183:1390-1401.
7Barber MD.Contemporary views on female pelvic anatomy.Cleve Clin J Med,2005,72:3-11.
8Bharucha AE.Pelvic floor:anatomy and function.Neurogastrocaterol Motil,2006,18:507-519.
9Tunn R,Paris S,Fischer W,et al.Static magnetic resonance imaging of the pelvic muscle morphology in women with stress urinary incontinence pelvic prolapse.Neurourol Urodyn,1998,17:579-589.