Intensive care units Critical care 3 Critical care medicine 2 Nursing 2 Postoperative care 2 Administration 1 Anesthesiology 1 Coronary care units 1 Coronary disease 1 Critically ill 1 Diagnosis, Radioscopic 1 Emergencies 1 Emergency medical services 1 Heart 1 Heart surgery 1 Intensive care nursing 1 Medical emergencies 1 Music 1 Music therapy 1 Myocardial infarction 1 Nurses' instruction 1 Nursing care 1 Patients 1 Pediatric intensive care 1 Pediatrics 1 Periodicals 1 Physiological effects 1 Preoperative care 1 Psychological aspects 1 Psychology 1