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Jette N, Patten S, Williams J, Becker W, Wiebe S.Jette N, et al. Among authors: becker w.Headache. 2008 Apr;48(4):501-16. doi: 10.1111/j.1526-4610.2007.00993.x. Epub 2007 Dec 7.Headache. 2008.PMID: 18070059
Cooke LJ, Rose MS, Becker WJ.Cooke LJ, et al. Among authors: becker wj.Neurology. 2000 Jan 25;54(2):302-7. doi: 10.1212/wnl.54.2.302.Neurology. 2000.PMID: 10668687
Magnusson JE, Becker WJ.Magnusson JE, et al. Among authors: becker wj.Cephalalgia. 2002 Apr;22(3):172-8. doi: 10.1046/j.1468-2982.2002.00336.x.Cephalalgia. 2002.PMID: 12047453