title: On closed-chest cardiac resuscitation.
mesh_terms: D000007:Abdominal Injuries / Q000209:etiology; D000328:Adult; D000368:Aged; D000818:Animals; D006323:Heart Arrest / Q000628:therapy*; D006336:Heart Massage / Q000009:adverse effects / Q000379:methods; D006801:Humans; D008875:Middle Aged; D012151:Resuscitation / Q000009:adverse effects; D013898:Thoracic Injuries / Q000209:etiology