title: Nerve blocks, trigger point injections and headache.
authors.forename: Andrew
authors.initials: A
authors.lastname: Blumenfeld
authors.forename: Avi
authors.initials: A
authors.lastname: Ashkenazi
mesh_terms: D006261:Headache / Q000628:therapy*; D020773:Headache Disorders / Q000628:therapy*; D006801:Humans; D007267:Injections; D009407:Nerve Block