Validation from the Ottawa Subarachnoid Hemorrhage Rule in patients with acute headache

Jeffrey J. Perry

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Marco L.A. Sivilotti

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Jane Sutherland

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Corinne M. Hohl

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Marcel Émond

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Lisa A. Calder

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Christian Vaillancourt

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Venkatesh Thirganasambandamoorthy

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Howard Lesiuk

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

George A. Wells

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

Ian G. Stiell

Department of Emergency Medicine (Perry, Sutherland, Calder, Vaillancourt, Thirganasambandamoorthy, Stiell) School of Epidemiology, Public Health insurance and Preventative Medicine (Perry, Calder, Vaillancourt, Thirganasambandamoorthy, Wells, Stiell) Division of Neurosurgery (Lesiuk), College of Ottawa, the Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ont. Departments of Emergency Medicine and Biomedical and Molecular Sciences (Sivilotti), Queen’s College, Kingston, Ont. Department of Emergency Medicine (Hohl), College of Bc, Vancouver, BC Department of Emergency Medicine (Émond), Université Laval, Québec, Que.

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