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Authors
Pellesi, Lanfranco https://orcid.org/0000-0003-4137-5039
Cevoli, Sabina
Favoni, Valentina
Lupi, Chiara
Mampreso, Edoardo
Negro, Andrea
Russo, Antonio
Benemei, Silvia
Guerzoni, Simona
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Article History
Received: 19 July 2019
Accepted: 26 October 2019
First Online: 13 November 2019
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: All procedures performed were in accordance with the ethical standards of the institutional research committees and with the Helsinki declaration and its later amendments or comparable ethical standards. Each centre received the approval of the competent Ethics Committee (for the Coordinating Centre, Careggi Hospital Headache Centre, Florence, approval #10976 of the Area Vasta Centro Section of the Tuscany Region Ethics Committee).
: Informed consent was obtained from all individual participants included in the study.
