title: Chronic migraine: treatability, refractoriness, pseudo-refractoriness.
authors.affiliation: Headache and Pain Unit, Department of Neurological Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, Rome, Italy. piero.barbanti@sanraffaele.it.
authors.forename: Piero
authors.initials: P
authors.lastname: Barbanti
authors.affiliation: Headache and Pain Unit, Department of Neurological Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, Rome, Italy.
authors.forename: Cinzia
authors.initials: C
authors.lastname: Aurilia
authors.affiliation: Headache and Pain Unit, Department of Neurological Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, Rome, Italy.
authors.forename: Gabriella
authors.initials: G
authors.lastname: Egeo
authors.affiliation: Headache and Pain Unit, Department of Neurological Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, Rome, Italy.
authors.forename: Luisa
authors.initials: L
authors.lastname: Fofi
authors.affiliation: Headache and Pain Unit, Department of Neurological Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, Rome, Italy.
authors.forename: Serena
authors.initials: S
authors.lastname: Piroso