“…('Anglo-American') (Pozner et al 2004, Symons & Schuster 2004, Black & Davies 2005, MacFarlane et al 2005) and physician-based ('FrancoGerman') models (Adnet & Lapostolle 2004, Gomes et al 2004, Langhelle et al 2004, Papaspyrou et al 2004, Roessler & Zuzan 2006. However, national and regional variation does occur and many EMS systems utilize elements from both models.…”