title: [Pilot study. NO-blockage reduces tension headache].
authors.forename: G
authors.initials: G
authors.lastname: Arnold
mesh_terms: D006801:Humans; D019001:Nitric Oxide Synthase / Q000037:antagonists & inhibitors*; D018781:Tension-Type Headache / Q000188:drug therapy*
chemical_list: D019001:Nitric Oxide Synthase