CJCP     2011 13 (2):  127-130    ISSN: 1008-8830  CN: 43-1301/R Catechol-O-methyltransferase gene rs6267 polymorphism in children with attention deficit hyperactivity disorder ZHANG Yue-Bing, LUO Xue-Rong, LIU Xia, ZHONG Yan, ZHU Feng, CHEN Lei-Yin Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha 410011, China. Email: luoxr@vip.sina.com Received: null  Revised: null  Online: null Supporting info