Choi J, Kim Y, Han P.  Extracellular Vesicles Derived from <italic>Lactobacillus plantarum</italic> Increase BDNF Expression in Cultured Hippocampal Neurons and Produce Antidepressant-like Effects in Mice.  Exp Neurobiol 2019;28:158-171.  https://doi.org/10.5607/en.2019.28.2.158