Di Sabato, F Effect of hyperbaric oxygen on the immunoreactivity to substance P in the nasal mucosa of cluster headache patients. [electronic resource] - Headache Apr 1996 - 221-3 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0017-8748 Standard No.: 10.1046/j.1526-4610.1996.3604221.x doi Subjects--Topical Terms: AdultAntigen-Antibody ReactionsCluster Headache--immunologyFemaleHumansHyperbaric OxygenationMaleMiddle AgedNasal Mucosa--immunologySubstance P--immunology