1. Costello EJ, Mustillo S, Erkanli A, et al. Prevalence and Development of Psychiatric Disorders in Childhood and Adolescence. Arch Gen Psychiatry. 2003;60:837-44.

2. Richman N, Stevenson J, Graham PJ. Pre-School to School:a behavioural study. London: Academic Press; 1982. See also Crowther JH, Bond LA, Rolf JE. The incidence, prevalence, and severity of behavior disorders among preschool-aged children in day care. J Abnorm Child Psych. 1981; 9(1): 23–42.

3. Tripp JH, Cockett M. Parents, parenting, and family breakdown. Arch Dis Child 1998;78(2):104–108.

4. Grimshaw R, McGuire C. Evaluating parenting programmes. London: National Children’s Bureau; 1998.

5. Scott, S. Parent Training Programmes, In Rutter M, Taylor E (eds) Child and Adolescent Psychiatry, 4th edition. Oxford:Wiley Blackwell; 2005. 949-967

6. Hall DMB, Elliman D, editors. Health for All Children. 4th ed. revised. Oxford: Oxford University Press; 2006.

7. Stores G. Aspects of parasomnias in children and adolescents. Arch Dis Child. 2009;94(1):63-69.

8. National Institute for Health and Clinical Excellence. Attention Deficit Hyperactivity Disorder. NICE guideline 72. London: NIHCE; 2008. www.nice.org.uk/guidance/CG72

9. Tremblay, R. E., Gervais, J., Petitclerc, A., Early childhood learning prevents youth violence. Montreal, Quebec. Centre of Excellence for Early Childhood Development: 2008; available at:

http://www.excellence-earlychildhood.ca/documents/Tremblay_AggressionReport_ANG.pdf

10. Rubin G, Dale A. Chronic constipation in children. BMJ. 2006; 333:1051–55. See also Clayden GS, Keshtgar AS, Carcani-Rathwell I, et al. The management of chronic constipation and related faecal incontinence in childhood. Arch Dis Child Educ Pract Ed. 2005; 90: 58–67.

11. Leitenberg H. “Is time-out from positive reinforcement an aversive event?” Psychological Bull. 1965; 64(6): 428-41.