Lopez-Vicente M, Sunyer J, Forns J, Torrent M, Julvez J. Continuous Performance Test II outcomes in 11-year-old children with early ADHD symptoms: a longitudinal study. Neuropsychology. 2014 Mar;28(2):202-11. doi: 10.1037/neu0000048
Niaura R, Britt DM, Borrelli B, Shadel WG, Abrams DB, Goldstein MG. History and symptoms of depression among smokers during a self-initiated quit attempt. Nicotine Tob Res. 1999 Sep 1;1(3):251-7.