John William Hafner
- Inappropriate helicopter emergency medical services transports: results of a national cohort utilization reviewJohn William Hafner
University of Illinois College of Medicine at Peoria, Surgery, One Illini Drive, Peoria, IL 61605, USA
Prehosp Emerg Care 16:434-42. 2012..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...