5Lumbiganon P, Laopaiboon M, Gulmezoglu A M et al. Method of deliv- ery and pregnancy outcomes in Asia: the WHO global survey on maternal and perinatal health 2007 -08 [ J ]. The Lancet, 2010, 375 (9713) : 490.
6Appropriate technology for birth [J] . The Lancet, 1985, 2 (8452) : 436.
7Chong YS, Kwek KY. Safer childbirth: avoiding medical interventions for non - medical reasons [ J] . The Lancet, 2010, 375 (9713) : 440.
8The L. Caesarean section - the first cut isn't the deepest [ J ] . The Lancet, 2010, 375 (9719): 956.
9Foureur M, Ryan C L, NichoU Met al. Inconsistent evidence: analysis of six national guidelines for vaginal birth after cesarean section [ J] . Birth, 2010, 37 (1): 3.
10Savage W. The rising caesarean section rate: a loss of obstetric skill? [J] .J Obstet Gynaecol, 2007, 27 (4): 339.