Template:Cite pmid/11472387
From Self-sufficiency
Martínez-Martín, P; Raffaelli E, E; Titus, F; Despuig, J; Fragoso, YD; Díez-Tejedor, E; Liaño, H; Leira, R; Cornet, ME (2001). "Efficacy and safety of metamizol vs. Acetylsalicylic acid in patients with moderate episodic tension-type headache: a randomized, double-blind, placebo- and active-controlled, multicentre study". Cephalalgia : an international journal of headache. 21 (5): 604–10. doi:10.1046/j.1468-2982.2001.00216.x. PMID 11472387.
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