Callaghan, B. C., Kerber, K. A., Pace, R. J., Skolarus, L., Cooper, W., & Burke, J. F. (2015). Headache neuroimaging: Routine testing when guidelines recommend against them. Cephalalgia.

Callaghan, Brian C., Kevin A. Kerber, Robert J. Pace, Lesli Skolarus, Wade Cooper, و James F. Burke. "Headache Neuroimaging: Routine Testing When Guidelines Recommend against Them." Cephalalgia 2015.

Callaghan, Brian C., et al. "Headache Neuroimaging: Routine Testing When Guidelines Recommend against Them." Cephalalgia 2015.