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Title
Clinical decision rules to rule out subarachnoid hemorrhage for acute headache.
Authors
Perry, Jeffrey J; Stiell, Ian G; Sivilotti, Marco L A; Bullard, Michael J; Hohl, Corinne M; Sutherland, Jane; Émond, Marcel; Worster, Andrew; Lee, Jacques S; Mackey, Duncan; Pauls, Merril; Lesiuk, Howard; Symington, Cheryl; Wells, George A
Abstract
Three clinical decision rules were previously derived to identify patients with headache requiring investigations to rule out subarachnoid hemorrhage.