Budweg, J., Sprenger, T., De Vere-Tyndall, A., Hagenkord, A., Stippich, C. and T. Berger, C. (2016) “Factors associated with significant MRI findings in medical walk-in patients with acute headache”, Swiss Medical Weekly, 146(4950), p. w14349. doi: 10.4414/smw.2016.14349.