MOESM1 of Dural arteriovenous fistulas and headache features: an observational study CorbelliIlenia MariaFrancesca EusebiPaolo RomoliMichele CardaioliGabriela HamamMohammed FloridiPiero CupiniLetizia SarchielliPaola CalabresiPaolo 2020 Additional file 1. Neurological examination at hospital arrival.