High risk clinical characteristics for subarachnoid haemorrhage in patients with acute headache: prospective cohort study

BMJ ◽  
2010 ◽  
Vol 341 (dec22 2) ◽  
pp. c7381-c7381
BMJ ◽  
2010 ◽  
Vol 341 (oct28 1) ◽  
pp. c5204-c5204 ◽  
Author(s):  
J. J. Perry ◽  
I. G. Stiell ◽  
M. L. A. Sivilotti ◽  
M. J. Bullard ◽  
J. S. Lee ◽  
...  

Stroke ◽  
2014 ◽  
Vol 45 (1) ◽  
pp. 92-100 ◽  
Author(s):  
Jeffrey J. Perry ◽  
Mukul Sharma ◽  
Marco L.A. Sivilotti ◽  
Jane Sutherland ◽  
Andrew Worster ◽  
...  

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