title: Responding to mass psychogenic illness.
authors.forename: S
authors.initials: S
authors.lastname: Wessely
mesh_terms: D001007:Anxiety / Q000150:complications; D004196:Disease Outbreaks; D006801:Humans; D008399:Mass Behavior; D011602:Psychophysiologic Disorders / Q000453:epidemiology / Q000523:psychology*