title: Voices in the air.
authors.affiliation: Institute of Human Health and Performance, University College London, London N19 5LW. jswindsor@doctors.org.uk
authors.forename: Jeremy S
authors.initials: JS
authors.lastname: Windsor
mesh_terms: D000739:Anecdotes as Topic; D006212:Hallucinations; D006801:Humans; D009051:Mountaineering