Jakovljevic MB, Jankovic SM, Jankovic SV, Todorovic N. Inverse correlation of valproic acid serum concentrations and quality of life in adolescents with epilepsy. Epilepsy Res. 2008 Aug;80(2-3):180–3. doi: 10.1016/j.eplepsyres.2008.04.006. PMID: 18495431.