Drupal-Bibcite0<style face="normal" font="default" size="100%">Outcomes after emergency percutaneous coronary intervention in patients with unprotected left main stem occlusion: the BCIS National Audit of percutaneous coronary intervention 6-year experience</style><style face="normal" font="default" size="100%">Outcomes after emergency percutaneous coronary intervention in patients with unprotected left main stem occlusion: the BCIS National Audit of percutaneous coronary intervention 6-year experience</style>