1. American Psychiatric Association (1968) Diagnostic and statistical manual of mental disorders, 2nd edn. American Psychiatric Association, Washington
2. American Psychiatric Association (1987) Diagnostic and statistical manual of mental disorders. 3rd-Revised ed. American Psychiatric Association, Washington, DC
3. American Psychiatric Association (2000) Diagnostic and statistical manual of mental disorders, 4th edn. American Psychiatric Association, Washington
4. Barkley RA (1997a) Behavioral inhibition, sustained attention, and executive functions: constructing a unifying theory of ADHD. Psychol Bull 121:65–94
5. Barkley R (1997b) ADHD in adults: comorbidity and adaptive impairments. NIMH. pp. Grant number1R01MH054509-01A2