title: Iatrogenic headache: the hazard of diagnostic investigations.
mesh_terms: D003287:Contrast Media / Q000009:adverse effects*; D006261:Headache / Q000209:etiology*; D006801:Humans; D007049:Iatrogenic Disease; D009192:Myelography; D013129:Spinal Puncture / Q000009:adverse effects
chemical_list: D003287:Contrast Media