Abstract
Labor is the process whereby the birth canal is prepared to allow the baby to pass from the uterine cavity to the outside world. In the normal course of events, it ends with a spontaneous or instrumental vaginal delivery, or Cesarean section. Conventionally, it is divided into a first stage, during which the cervix passively dilates in response to uterine contractions, a second stage where the mother pushes the baby through the vagina, and a third stage where the placenta delivers.
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Grant, N., Strevens, H., Thornton, J. (2015). Physiology of Labor. In: Capogna, G. (eds) Epidural Labor Analgesia. Springer, Cham. https://doi.org/10.1007/978-3-319-13890-9_1
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DOI: https://doi.org/10.1007/978-3-319-13890-9_1
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