Fayyad, J. et al. Cross-national prevalence and correlates of adult attention-deficit hyperactivity disorder. Br J Psychiatry. 190, 2007, 402-409.
American Psychiatric Association. Diagnostic and statistical manual of mental disorders. Fifth edition (DSM-5). Washington, D. C., American Psychiatric Association, 2013, 992 p. (ISBN 9780890425558)