Vietnam in context.
D001803:Blood Transfusion; D004631:Emergency Medical Service Communication Systems; D004632:Emergency Medical Services / Q000458:organization & administration*; D006801:Humans; D008887:Military Medicine; D014187:Transportation of Patients; D014481:United States; D014744:Vietnam; D000078329:Workforce; D014947:Wounds and Injuries / Q000628:therapy*