title: The meaning of opt-out.
authors.forename: Michelle
authors.initials: M
authors.lastname: Biros
mesh_terms: D001290:Attitude; D035843:Biomedical Research / Q000941:ethics*; D005260:Female; D006801:Humans; D007258:Informed Consent / Q000523:psychology*; D008297:Male; D058687:Out-of-Hospital Cardiac Arrest / Q000523:psychology*; D018579:Patient Selection / Q000941:ethics*; D012151:Resuscitation / Q000523:psychology*