CJCP     2012 14 (10):  771-774    ISSN: 1008-8830  CN: 43-1301/R Causes of unexplained syncope in children KANG Mei-Hua, XU Yi, WANG Cheng, WU Li-Jia, LIN Ping, LI Fang, XIE Zhen-Wu Department of Cardiovascular Pediatrics, Children′s Medical Center, Second Xiangya Hospital of Central South University, Changsha 410011, China. ch.wang@163.com Received: null  Revised: null  Online: null Supporting info