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原材料引用（Materials): The American Heart Association says about ninety-five ...
原材料引用（Materials): Doctor Ewy thinks the CPR guidelines should be changed...
原材料引用（Materials): He says this would save lives. hi s?z e?s w?d se?v l?v...
原材料引用（Materials): It said people should increase the number of chest pre...
原材料引用（Materials): Twenty-two percent survived with good brain ability. ?...
原材料引用（Materials): The researchers say any kind of CPR improved chances o...
原材料引用（Materials): 712 received CPR，439 received chest presses only. No m...
原材料引用（Materials): In all the cases, witnesses saw the event happen.More ...
原材料引用（Materials): DoctorsinTokyoled the research. It examined more than ...