APA (7th ed.) Citation

N, L., ML, W., M, B., C, G., & RH, J. (2014). Epidemiology of concurrent headache and sleep problems in Denmark. Cephalalgia : an international journal of headache, 34(10), 833. https://doi.org/10.1177/0333102414543332

Chicago Style (17th ed.) Citation

N, Lund, Westergaard ML, Barloese M, Glümer C, and Jensen RH. "Epidemiology of Concurrent Headache and Sleep Problems in Denmark." Cephalalgia : An International Journal of Headache 34, no. 10 (2014): 833. https://doi.org/10.1177/0333102414543332.

MLA (9th ed.) Citation

N, Lund, et al. "Epidemiology of Concurrent Headache and Sleep Problems in Denmark." Cephalalgia : An International Journal of Headache, vol. 34, no. 10, 2014, p. 833, https://doi.org/10.1177/0333102414543332.