|  | patient* views OR |
emergency research OR | Â | patient* perception* OR |
emergency medicine OR | Â | patient* opinion* OR |
exception from informed consent OR | AND | patient* attitude* OR |
waiver of informed consent OR | Â | public* views OR |
emergency exception OR | Â | public* perception* OR |
resuscitation research | Â | public* opinion* OR |
 |  | public* attitude* |