Udesen, Stine Emilie Junker, et al. “Characteristic and Help-Seeking Behavior of Patients With Infections Who Called the Medical Helpline 1813: A Mixed Methods Study”. Dansk Tidsskrift for Akutmedicin, vol. 2, no. 3, Apr. 2019, p. 52, doi:10.7146/akut.v2i3.112994.