1. Department of Neuroscience, Comprehensive Stroke Center, Hospital Clinic of Barcelona, Barcelona, Spain
2. Institut d’Investigacions Biomèdiques Agustí Pi i Sunyer (IDIBAPS), Barcelona, Spain
3. Stroke Unit, Department of Neuroscience, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
4. Neuroradiology Service, Hospital Clinic of Barcelona, Barcelona, Spain
5. Department of Neurology, Stroke Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
6. Neuroradiology Service, Hospital Universitari de Girona Doctor Josep Trueta, Girona, Spain
7. School of Medicine, University of Barcelona, Barcelona, Spain
8. Neurology Service, Stroke Unit, Institut d’Investigació Biomèdica de Girona (IDIBGI), Hospital Universitari de Girona Doctor Josep Trueta, Girona, Spain
9. Department of Interventional Neuroradiology, Bellvitge University Hospital, Hospitalet de Llobregat, Barcelona, Spain
10. Department of Neurology, Bellvitge University Hospital, Barcelona, Spain
11. Interventional Neuroradiology Unit, Department of Neuroscience, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
12. Department of Neurology, Institut Hospital del Mar d’Investigacions Mèdiques, Universitat Autònoma de Barcelona, Barcelona, Spain
13. Department of Neuroradiology, Hospital del Mar, Barcelona, Spain
14. Stroke Unit, Department of Neurology, Hospital Universitari Vall d’Hebron, Barcelona, Spain
15. Department of Neuroradiology, Hospital Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
16. Medical Statistics Core Facility, Clinical Pharmacology Service, IDIBAPS, Hospital Clínic Barcelona, Barcelona, Spain
17. Biostatistics Unit, Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
18. for the CHOICE Investigators