title: The force necessary for external cardiac compression.
mesh_terms: D000328:Adult; D000368:Aged; D004634:Emergency Medical Technicians / Q000193:education; D005260:Female; D006323:Heart Arrest / Q000628:therapy; D006336:Heart Massage / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure