3Higgins Jpt GS. Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 [Updated March 2011 ][Z].The Co- chranc Collaboration.2011.
4Slim K, Nini E, Forestier D,et al. Melhodological index for non- randomized sludies (minors): development and validation of a new inslrument[J]. ANZ J Surg,2003,73(9) :712-716.
5Bhattacharjee N, Saha SP, Patra KK, et al. Optimal timing ofprophylactic antibiotic for cesarean delivery: a randomized com- parative study[J].J Obstet Gynaecol Res, 2013,39 (12) : 1560- 1568.
6Cunningham FG, Leveno K J, Depalma RT, et al.Perioperative an timicrobials for cesarean delivery: before or after cord clamping [J].Obstet Gynecol, 1983,62(2) : 151-154.
7Fejgin MD, Markov S, Goshen S,et al.Antibiotic for cesarean sec- tiom the case for "true" prophylaxis[J]. Int J Gynaecol Obstet, 1993,43 (3) : 257-261.
8Francis C, Mumford M, Strand M L, et al.Timing of prophylactic antibiotic at cesarean section., a double-blinded, randomized trial [J].J Perinatol,2013,33(10) :759-762.
9Kandil M, Sanad Z,Gaber W.Antibiotic prophylaxis at elective ce- sarean section., a randomized controlled trial in a low resource set- ting[J~.J Matern Fetal Neonatal Med, 2014,27 (6) : 588-591.
10Macones GA, Cleary KL, Parry S, et al. The timing of antibiotics at cesarean., a randomized controlled trial[J]. Am J Perinatol, 2012,29(4) ~ 273-276.
