title: Better mental health for relatives allowed to witness cardiopulmonary resuscitation.
mesh_terms: D016887:Cardiopulmonary Resuscitation / Q000523:psychology*; D006801:Humans; D008603:Mental Health; D016017:Odds Ratio; D016032:Randomized Controlled Trials as Topic; D013313:Stress Disorders, Post-Traumatic / Q000517:prevention & control*; D014789:Visitors to Patients / Q000523:psychology*