DH is the guarantor.įunding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.Ĭompeting interests CPC, ARA, LP, MM, JWA, FN, MOG, MRF: none. DCH: study conception, design of the work, acquisition of data, interpretation of data, critical revision of manuscript. RGN, ARA, LP, MM, JWA, FN, MOG, MRF: data acquisition, critical revision of manuscript. Twitter CPC: study conception, design of the work, acquisition of data, statistical analysis, interpretation of data, drafting of the manuscript. Emory University School of Medicine, Atlanta, Georgia, USA Correspondence to Dr Diogo C Haussen, Neurology, Marcus Stroke and Neuroscience Center, Grady Memorial Hospital.5 Department of Neurology, Hospital Vall d'Hebron, Barcelona, Spain.4 Neurology, Emory University School of Medicine, Atlanta, Georgia, USA.3 Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia, USA.2 Department of Neuroradiology, Centro Hospitalar Universitário Lisboa Central, Lisboa, Portugal.1 Marcus Stroke & Neuroscience Center, Grady Memorial Hospital, Emory University School of Medicine, Atlanta, Georgia, USA.