Prehospital emergency care : official journal of the National Association of EMS Physicians and the National Association of State EMS Directors
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Medical transport using helicopter emergency medical services (HEMS) has rapidly proliferated over the past decade. Because of issues of cost and safety, appropriate utilization is of increasing concern. ⋯ Based on established criteria, only 1.3% of total flights were determined to be inappropriate. This large national cohort demonstrated compliance with current industry standards.