RT Journal Article SR Electronic T1 Helicopter Ambulances in Critical Care JF Journal of the Royal Army Medical Corps JO J R Army Med Corps FD British Medical Journal Publishing Group SP 22 OP 25 DO 10.1136/jramc-140-01-05 VO 140 IS 1 A1 Andrew, D R YR 1994 UL http://militaryhealth.bmj.com/content/140/1/22.abstract AB