1. Chabriat H, Danchot J, Michel P et al (1997) Precipitating factors in migraineurs: a reappraisal in a national control-matched survey. Cephalalgia 17:318–319
2. Covelli V, Pellegrino NM, Jirillo E (2003) A point of view: The need to identify an antigen in psyconeuroimmunological disorders. Curr Pharm Des 9[suppl 24]:1951–1955, 10.2174/1381612033454234, 1:CAS:528:DC%2BD3sXms1Wltbw%3D, 12871180
3. Tunca A, Turkay C, Tekin O et al (2004) Is Helicobacter pylori infection a risk factor for migraine? A control study. Acta Neurol Belg 104[suppl 4]:161–164, 15742606
4. Gasbarrini A, De Luca A, Fiore G et al (1998) Primary headache and Helicobacter pylori. Int J Angiol 7:310–312, 10.1007/s005479900121, 9716793
5. Gasbarrini A, De Luca A, Fiore G et al (1998) Beneficial effects of Helicobacter pylori eradication on migraine. Hepato-Gastroenterology 45:765–770, 1:STN:280:DyaK1czkvVOmtw%3D%3D, 9684130