title: A reply.
authors.forename: N
authors.initials: N
authors.lastname: McMahon
authors.forename: L
authors.initials: L
authors.lastname: Hogg
authors.forename: A D
authors.initials: AD
authors.lastname: Exton
authors.forename: A R
authors.initials: AR
authors.lastname: Corfield
mesh_terms: D017732:Air Ambulances; D001794:Blood Pressure; D015924:Blood Pressure Monitors; D006801:Humans; D018670:Monitoring, Ambulatory / Q000295:instrumentation*