8. 2004 Ontario Prehospital Advanced Life Support (OPALS) study found
NOimprovements in survival or
neurological outcome after implementation of ALS
protocols in 17 cities in Ontario (NEJM JW Emerg Med Sep 29 2004
Sanghavi P et al. Outcomes after out-of-hospital cardiac arrest treated by basic vs advanced life support.
JAMA Intern Med 2014 Nov 24; [e-pub ahead of print]