1. Emergency Department, Hospital Clínico San Carlos, IDISSC, Universidad Complutense, Madrid, Spain
2. Investigation Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
3. Emergency Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
4. Emergency Department, Hospital Universitari de Bellvitge, l’Hospitalet de Llobregat, Barcelona, Spain
5. Emergency Department, Hospital Reina Sofía, Murcia, Spain
6. Emergency Department, Unidad de Estancia Corta y Hospitalización a Domicilio, Hospital Doctor Balmis de Alicante, Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Universidad Miguel Hernández, Alicante, Spain
7. Facultad de Ciencias de la Salud, Universidad Europea de Canarias, Tenerife, Spain
8. Emergency Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
9. Emergency Department, Hospital Reina Sofía, Córdoba, Spain
10. Emergency Department, Hospital Universitario Gregorio Marañón, Madrid, Spain
11. Emergency Department, Hospital Universitario de Burgos, Burgos, Spain
12. Emergency Department, Complejo Asistencial Universitario de León, León, Spain
13. Emergency Department, Hospital Universitario Morales Meseguer, Murcia, Spain
14. Emergency Department, Hospital Francecs de Borja, Gandía, Spain
15. Emergency Department, Hospital Universitario Severo Ochoa, Leganés, Spain
16. Emergency Department, Hospital Universitario Virgen Arrixaca, Murcia, Spain
17. Emergency Department, Hospital Universitario Lorenzo Guirao, Cieza, Spain
18. Emergency Department, Hospital Josep Trueta, Girona, Spain
19. Emergency Department, Hospital de Mendaro, Gipuzkoa, Spain
20. Emergency Department, Hospital Miguel Servet, Zaragoza, Spain
21. Emergency Department, Hospital Comarcal El Escorial, Madrid, Spain
22. Emergency Department, Hospital Do Salnes, Villagarcía de Arosa, Spain
23. Emergency Department, Hospital de Barbanza, Ribeira, Spain
24. Emergency Department, Hospital del Mar, Barcelona, Spain
25. Emergency Department, Hospital Santa Creu y Sant Pau, Barcelona, Spain
26. Emergency Department, Hospital de Vic, Vic, Spain