2Yoles I,Maschiach S.Increased maternal mortality in cesarean section as compared to vaginal delivery? Time for re-evaluation[J].Am J Obstet Gynecol,1998,178 (Suppl):S78.
3Maclenan AH,Taylor AW,Wilson DH.The prevalence of pelvic floor disorders and their relationship to gender,age,parity and mode of delivery[J].BJOG,2000,107 (12):1460-1470.
4Al-Mufti R,McCarthy A,Fisk NM.Who wants a caesarean section? A study of women's personal experience of vaginal and caesarean delivery[J].J Obstet Gynaecol,2003,23 (4):364-366.
5Land R,Parry A,Rane A,et al.Personal preferences of obstetricians towards childbirth[J].Aust N Z J Obstet Gynaecol,2001,41 (3):249-252.
7Bell JS,Campbell DM,Graham WJ,et al.Can obstetric complications explain the high levels of obstetric interventions and maternal service use among older women? A retrospective analysis of routinely collected data[J] Br J Obstet Gynaeco12001,108 (9):910-918.
8Cleary-Golden J,Malone FD,Vidaver J,et al.Impact of maternal age on obstetric outcome[J].Obstet Gynecol,2005,105 (5 pt 1):983 -990.
9Porreco RP,Harden L,Gambotto M,et al.Expectation of pregnancy outcome among mature women[J].Am J Obstet Gynecol,2005,192(1):38-41.
10Salihu HM,Shumpert NS,Slay M,et al.Childbearing beyond maternal age 50 and fetal outcomes in the United States[J].Obstet Gynecol,2003,102(5 pti):1006-1014.