2A Sau,S Chalmers,AH Shennan,et al.Short communication:Vaginal delivery can be considered in monochorionic diamniotic twins[J].BJOG:An International Journal of Obstetrics&Gynaecology,2006,11(35):96-99.
3Tippawan Liabsuetrakul,Pisake Lumbiganon,Rintaro Mori,et al.A secondary analysis of the WHO global survey on maternal and perinatal health for antibiotics used in vaginal deliveries[J].International Journal of Gynecology and Obstetrics,2013(9):116-119.
4LA Bergenhenegouwen,LJE Meertens,J Schaaf,et al.Vaginal delivery versus caesarean section in preterm breech delivery:a systematic review[J].European Journal of Obstetrics and Gynecology,2014,172:263-265.