@inbook{1167761712, author={Deborah S. Minor and T. Kristopher Harrell}, editor={DiPiro, Joseph T. and Talbert, Robert L. and Yee, Gary C. and Matzke, Gary R. and Wells, Barbara G. and Posey, L. Michael}, title={Headache Disorders}, booktitle={Pharmacotherapy: A Pathophysiologic Approach, 10e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2017}, url={accesspharmacy.mhmedical.com/content.aspx?aid=1167761712} }