Huser, A., Rohwedder, A., Apostolopoulou, A. A., Widmann, A., Pfitzenmaier, J. E., Maiolo, E. M., et al. (2012). The serotonergic central nervous system of the Drosophila larva: Anatomy and behavioral function. PLoS One, 7(10): e47518. doi:10.1371/journal.pone.0047518.