@article{kim2021-32300799,
  author  = {Kim, C. S. and Cha, L. and Sim, M. and Jung, S. and Chun, W. Y. and Baik, H. W. and Shin, D. M.},
  title   = {{Probiotic Supplementation Improves Cognitive Function and Mood with Changes in Gut Microbiota in Community-Dwelling Older Adults: A Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial}},
  journal = {The journals of gerontology. Series A, Biological sciences and medical sciences},
  year    = {2021},
  doi     = {10.1093/gerona/glaa090},
  pmid    = {32300799},
  url     = {https://doi.org/10.1093/gerona/glaa090}
}