title: Air Evac Services: improving Arizona's health over 36 years.
authors.affiliation: PHI Air Medical in Phoenix, Arizona, USA.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Collier
mesh_terms: D017732:Air Ambulances / Q000266:history / Q000458:organization & administration; D001130:Arizona; D049673:History, 20th Century; D006801:Humans; D018635:Rescue Work