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Keefe, R. S. E., et al. “Dr. Keefe and colleagues reply.” American Journal of Psychiatry, vol. 164, no. 12, Dec. 2007, pp. 1911–12. Scopus, doi:10.1176/appi.ajp.2007.07071086r.

Keefe RSE, Sweeney JA, Gu H, Hamer RM, Perkins DO, McEvoy JP, Lieberman JA. Dr. Keefe and colleagues reply. American Journal of Psychiatry. 2007 Dec 1;164(12):1911–1912.