1. Emergency Department Hospital Clínic IDIBAPS Barcelona Catalonia Spain
2. Department of Medicine Medical School University of Barcelona Barcelona Catalonia Spain
3. Emergency Department Hospital Universitario de Canarias University of La Laguna Tenerife Canary Islands Spain
4. Cardiovascular Research Institute Basel University Hospital Basel Basel Switzerland
5. Emergency Department Hospital Clínico San Carlos IDISSC Complutense University Madrid Spain
6. Emergency Department Hospital de la Santa Creu I Sant Pau Barcelona Catalonia Spain