TRAINING OF RESCUE PERSONNEL IN CLOSED-CHEST CARDIAC RESUSCITATION.
D005392:First Aid; D006266:Health Education; D006323:Heart Arrest; D006336:Heart Massage; D006801:Humans; D008404:Massachusetts; D012151:Resuscitation; D013909:Thorax
FIRST AID; HEALTH EDUCATION; HEART ARREST; HEART MASSAGE; MASSACHUSETTS; RESUSCITATION