Meta-analysis of adjunctive levetiracetam in refractory partial sei
ZHANG Ying, ZHANG Ya-xi, LI Dai, LIN Hui-hui, SONG Yi-jun
Chinese Journal of Contemporary Neurology and Neurosurgery . 2012, (5): 542 -551 .  DOI: 10.3969/j.issn.1672-6731.2012.05.009