References for "Options for treatment-resistant depression"
Boren JJ, et al. "Just How Effective Are Antidepressant Medications? Results of a Major New Study," Journal of Contemporary Psychotherapy (Sept. 6, 2008): Electronic publication only.
Dougherty DD, et al. "Somatic Therapies for Treatment-Resistant Depression: New Neurotherapeutic Interventions," Psychiatric Clinics of North America (March 2007): Vol. 30, No. 1, pp. 31–37. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=17362801