Peer Reviewed Clinical Flowchart Neurology Diagnostic approach to unusual primary headaches Elspeth Hutton, Richard Stark Full text: PDF Copied to clipboard Published in Unusual primary headaches: keys to an accurate diagnosis We recommend that this flowchart be read in context of the article in which it was published. To access the article, click the link above. Get full access Subscribe for full access to all articles Already a subscriber? Login here. Advertisement Advertisement Advertisement