RT Journal Article SR Electronic T1 Treatment of ADHD in patients unresponsive to methylphenidate JF Journal of Psychiatry and Neuroscience JO J Psychiatry Neurosci FD Canadian Medical Association SP 216 OP 216 DO 10.1503/jpn.110020 VO 36 IS 3 A1 Lily Hechtman YR 2011 UL http://jpn.ca/content/36/3/216.abstract