Epidemiological investigation of tic disorders among pupils in the Shunde Longjiang area, and their relationship to trace elements
LIU Ling, JIANG Zhi-Gui, LI Wei, LIANG Hui-Bing, LIN Yan
CJCP . 2013, (8): 657 -660 .  DOI: 10.7499/j.issn.1008-8830.2013.08.013