Haenisch, B., Herms, S., Mattheisen, M., Steffens, M., Breuer, R., Strohmaier, J., Degenhardt, F., Schmael, C., Lucae, S.,
Maier, W., Rietschel, M., Noethen, M. M., & Cichon, S. (2013). Genome-wide association
data provide further support for an association between 5-HTTLPR and major depressive disorder. JOURNAL
OF AFFECTIVE DISORDERS, 146(3), 438-440. doi:10.1016/j.jad.2012.08.001.