Authors: Simona Sacco; Gabriele S Merki-Feld; Karen Lehrmann Ægidius; Johannes Bitzer; Marianne Canonico; Tobias Kurth; Christian Lampl; Øjvind Lidegaard; E Anne MacGregor; Antoinette MaassenVanDenBrink; Dimos-Dimitrios Mitsikostas; Rossella Elena Nappi; George Ntaios; Per Morten Sandset; Paolo Martelletti Journal: J Headache Pain Date: 2017-10-30 Impact factor: 7.277