CJCP     2013 15 (9):  728-732    ISSN: 1008-8830  CN: 43-1301/R Comorbidities and functional impairments in children with attention deficit hyperactivity disorder XIAO Zhao-Hua, WANG Qing-Hong, LUO Tian-Tian, ZHONG Le Department of Pediatrics, Xiangya Hospital, Central South University, Changsha 410008, China Received: 2013-02-01  Revised: 2013-04-17  Online: null Supporting info