title: O062. Post ambulatory surgery headache in patients affected from primary headaches: a comparison with the general population.
authors.affiliation: Centro Day Surgery, Istituto Europeo di Oncologia IRCCS, Milan, Italy. gianfranco.manfredi@ieo.it.
authors.forename: Giovanni F
authors.initials: GF
authors.lastname: Manfredi
authors.affiliation: Centro Cefalee, Dip. Scienze della Salute, Università degli Studi di Firenze, Florence, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: De Cesaris
authors.affiliation: Unità Ginecologia Preventiva, Istituto Europeo di Oncologia IRCCS, Milan, Italy.
authors.forename: Eugenia
authors.initials: E
authors.lastname: Tomas Roldan