1134-8046 1134-8046 S1134-80462019000400009 10.20986/resed.2019.3710/2018 España España Canada España 00 08 2019 00 08 2019 26 4 247 250

Headache Classification Committee of the International Headache Society (IHS) 2018 38 1 1 1-211 2005 45 220-3 2016 56 1093-106 2001 92 1173-81 2010 50 1 1 130-2 2013 14 1 1 48 2013 19 6 6 370-80 2017 57 8 8 1261-4 2015 17 27 2018 39 suppl 1 suppl 1 47-58 2017 43 8 8 1292-303 2017 57 Suppl 1 Suppl 1 29-33