Pregnancy, Vaginal Delivery: References

Kilpatrick S and Garrison E. 2012. Normal Labor and Delivery. Obstetrics: Normal and Problem pregnancies [6th ed.];13, 267-286. Philadelphia: Elsevier Saunders.

Office on Women’s Health, US Department of Health and Human Services. Labor and birth. http://www.womenshealth.gov/pregnancy/childbirth-beyond/labor-birth.html. 2010.

Williams DE, Pridjian G. 2011. Obstetrics. Textbook of family medicine. [8th ed.]; 21, 359-401. Philadelphia: Elsevier Saunders.

US Department of Health & Human Services. National and regional estimates on hospital use for all patients from the HCUP nationwide inpatient sample. Agency for Healthcare Research and Quality. http://hcupnet.ahrq.gov/HCUPnet.jsp. 2012. Accessed July 22, 2014.