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Sphenopalatine ganglion block for postdural puncture headache in the patient with challenging spinal anatomy

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  • Contributors DL, SC and GJG contributed to the concept, design, data collection/processing, analysis/interpretation, literature search, writing manuscript and critical review.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

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

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