PT - JOURNAL ARTICLE AU - Mckechnie, Ronald J. TI - DEPRESSION: THEORY AND RESEARCH AID - 10.1136/jnnp.38.5.520-a DP - 1975 May 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 520--520 VI - 38 IP - 5 4099 - http://jnnp.bmj.com/content/38/5/520.2.short 4100 - http://jnnp.bmj.com/content/38/5/520.2.full SO - J Neurol Neurosurg Psychiatry1975 May 01; 38