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. 2019 Nov 6;26(5):536–542. doi: 10.5603/CJ.a2018.0073

Figure 1.

Figure 1

Study design. Stages of sample knowledge evaluation and practical test. Cardiopulmonary resuscitation (CPR) variables and statistics; AED — automated external defibrillator; BLS — basic life support; CC — chest compressions.