The effect of Helicopter Emergency Medical Services on mortality for trauma patients in the Netherlands

M.A.C. De Jongh, M. Verhofstad, H. Van Stel, G. Schrijvers & L. Leenen
Questionnaire: In the Netherlands all emergency medical services (EMS) are Pre-Hospital Trauma Life Support certified and supply high qualified basic emergency care. Since 1997 helicopter emergency medical services (HEMS) are available to provide in addition to the EMS on-scene assistance to trauma [for full text, please go to the a.m. URL]