Published: June 2001 On the web The Journal of Headache and Pain volume 2, page 49 (2001)Cite this article 434 Accesses 2 Citations Metrics details Rights and permissionsReprints and PermissionsAbout this articleCite this article On the web. J Headache Pain 2, 49 (2001). https://doi.org/10.1007/PL00012187Download citationIssue Date: June 2001DOI: https://doi.org/10.1007/PL00012187
