Smith, L. A., Cornelius, V. R., Azorin, J. M., Perugi, G., Vieta, E., Young, A. H., & Bowden, C. L. (2010). Valproate for the treatment of acute bipolar depression: Systematic review and meta-analysis. Journal of Affective Disorders, 122(1-2), 1-9. https://doi.org/10.1016/j.jad.2009.10.033