DOI: 10.1055/s-00033990

TH Open

References

HCUP.
Trend Weights for HCUP NIS Data.
Rockville, MD: Agency for Healthcare Research and Quality; September 2014. Available at:
http://www.hcup-us.ahrq.gov/db/nation/nis/trendwghts.jsp . Accessed May 1, 2016

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