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Letter
Sphenopalatine ganglion block for postdural puncture headache in the patient with challenging spinal anatomy
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Footnotes
Twitter @daniellelevinmd
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.
Provenance and peer review Not commissioned; internally peer reviewed.