1. Are there basic emotions?;Ekman;Psychol Rev,1992
2. Childhood and adolescent depression: a review of the past 10 years. Part I;Birmaher;J Am Acad Child Adolesc Psychiatry,1996
3. Prevalence and development of psychiatric disorders in childhood and adolescence;Costello;Arch Gen Psychiatry,2003
4. Depression in infancy;Keren;Child Adolesc Psychiatr Clin N Am,2006
5. ABC News- Health Online. One in 40 infants experience baby blues, doctors say. Mental health of parents can have an effect on child. 2006. Available at: http://abcnews.go.com/Health/OnCall/story?id=2640591&;page=1. Accessed December 3, 2006.