Interest in childhood depression is demonstrated by an increasing amount of research in the area. A review of literature suggests that depression as a clinical entity is observable in children ( I ).
Sharma, MD, Vanshdeep
"Brief Reports: Depressive Phenomena in Infants,"
Jefferson Journal of Psychiatry: Vol. 4
, Article 9.
Available at: http://jdc.jefferson.edu/jeffjpsychiatry/vol4/iss2/9