Tham khảo Sinh_ngược

  1. 1 2 3 Hofmeyr, GJ; Hannah, M; Lawrie, TA (ngày 21 tháng 7 năm 2015). “Planned caesarean section for term breech delivery.”. The Cochrane Database of Systematic Reviews 7: CD000166. PMID 26196961. doi:10.1002/14651858.CD000166.pub2. 
  2. ↑ Conde-Agudelo, A. “Planned caesarean section for term breech delivery: RHL commentary (last revised: ngày 8 tháng 9 năm 2003)”. The WHO Reproductive Health Library. Geneva: World Health Organization. Truy cập ngày 19 tháng 2 năm 2016. 
  3. ↑ Miller EC, Kouam L (1981). “Frequency of breech presentation during pregnancy and on full term”. Zentralbl Gynakol 103: 105–109. 
  4. ↑ Hill L (2008). “Prevalence of Breech Presentation by Gestational Age”. American Journal of Perinatology 7: 92–93. PMID 2403797. doi:10.1055/s-2007-999455. 
  5. ↑ Hughey MJ (1985). “Fetal position during pregnancy”. Am J Obstet Gynecol 153: 885–886. doi:10.1016/s0002-9378(85)80276-3. 
  6. ↑ Sørensen, T; Hasch, E; Lange, AP (1979). “Fetal presentation during pregnancy”. Lancet 2: 477. doi:10.1016/s0140-6736(79)91536-8. 
  7. ↑ Tadmor OP, Rabinowitz R, Alon L, Mostoslavky V, Aboulafia Y. Can breech presentation at birth be predicted from ultrasound examination during the second or third trimester?" Int J Gynaecol Obstet 1994;46:11–14.
  8. ↑ Boos, R; Hendrik, HJ; Schmidt, W (1987). “Behavior of fetal position in the second half of pregnancy in labor with breech and vertex presentations”. Geburtshilfe Frauenheilkd 47: 341–345. 
  9. ↑ Witkop, CT; Zhang, J; Sun, W; Troendle, J (2008). “Natural history of fetal position during pregnancy and risk of nonvertex delivery”. Obstet Gynecol 111: 875–880. PMID 18378746. doi:10.1097/aog.0b013e318168576d. 

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