DOI:
10.1055/s-00000009
American Journal of Perinatology
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References
Agnecy for Healthcare Research and Quality.
Overview of the National (Nationwide) Inpatient Sample (NIS).
Accessed July 1, 2016 at:
https://www.hcup-us.ahrq.gov/nisoverview.jsp
We do not assume any responsibility for the contents of the web pages of other providers.