Greater occipital nerve injection in primary headache syndromes—prolonged effects from a single injection

  • Afridi, S K
  • Shields, K G
  • Bhola, R
  • Goadsby, P J

Pain. 2006;122:126–129.

Headache 47(2):p 308, February 2007.
Copyright © 2007 Blackwell Publishing Ltd.
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