APA (7th ed.) Citation

ML, W., EH, H., C, G., & RH, J. (2015). Prescription pain medications and chronic headache in Denmark: Implications for preventing medication overuse. European journal of clinical pharmacology, 71(7), 851. https://doi.org/10.1007/s00228-015-1858-3

Chicago Style (17th ed.) Citation

ML, Westergaard, Hansen EH, Glümer C, and Jensen RH. "Prescription Pain Medications and Chronic Headache in Denmark: Implications for Preventing Medication Overuse." European Journal of Clinical Pharmacology 71, no. 7 (2015): 851. https://doi.org/10.1007/s00228-015-1858-3.

MLA (9th ed.) Citation

ML, Westergaard, et al. "Prescription Pain Medications and Chronic Headache in Denmark: Implications for Preventing Medication Overuse." European Journal of Clinical Pharmacology, vol. 71, no. 7, 2015, p. 851, https://doi.org/10.1007/s00228-015-1858-3.