A cross-sectional study on the association between Helicobacter pylori infection and headache. - Cavestro, Cinzia; Prandi, Giancarlo; Manildo, Matteo; Martini, Sabina; Genovesi, Corrado; Premoli, Alberto; Fraire, Flavio; Neri, Loris; Mandrino, Silvia; Ferrero, Marcella; Rota, Eugenia (Neurological Sciences, 2022)