In E. Schulman, A.E. Lake, M. Levin, & E. Loder (Eds.) Refractory Migraine
Penzien, D.B., Smitherman, T.A., & Rains, J.C. . In E. Schulman, A.E. Lake, M. Levin, & E. Loder (Eds.) Refractory Migraine. Identifying Psychiatric Comorbidity in Refractory Migraine Patients. 2010; 80-97.