References
- Kawakita T, Dhillon NK, Huang JCC. Maternal outcomes according to cesarean uterine incision between 23 and 27 weeks’ gestation. J Matern Fetal Neonatal Med. 2019:1–5. DOI:https://doi.org/10.1080/14767058.2019.1663819.
- Tofthagen C. Threats to validity in retrospective studies. J Adv Pract Oncol. 2012;3(3):181–183.
- Reddy UM, Rice MM, Grobman WA, et al. Serious maternal complications after early preterm delivery (24–33 weeks’ gestation). Am J Obstet Gynecol. 2015;213(4):538.e1–538.e9. Oct
- Jauniaux E, Ayres-de-Campos D, Langhoff-Roos J, et al. FIGO classification for the clinical diagnosis of placenta accreta spectrum disorders. Int J Gynecol Obstet. 2019;146(1):20–24.