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Atraumatic headache in US emergency departments: recent trends in CT/MRI utilisation and factors associated with severe intracranial pathology

Footnotes

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement Statistical code is available from the corresponding author at john.gilbert{at}yale.edu. NHAMCS dataset is publicly available online at http://www.cdc.gov/nchs/ahcd.html. Consent was not necessary because the presented data are anonymised as part of the NHAMCS survey methodology.

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Footnotes

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement Statistical code is available from the corresponding author at john.gilbert{at}yale.edu. NHAMCS dataset is publicly available online at http://www.cdc.gov/nchs/ahcd.html. Consent was not necessary because the presented data are anonymised as part of the NHAMCS survey methodology.

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