title: Postural headache following thoracic somatic paravertebral nerve block.
mesh_terms: D000328:Adult; D000368:Aged; D002045:Bupivacaine; D006261:Headache / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D009407:Nerve Block / Q000009:adverse effects* / Q000379:methods; D011187:Posture; D013346:Subarachnoid Space; D013900:Thoracic Nerves
chemical_list: D002045:Bupivacaine