@article{balion2012-23008220,
  author  = {Balion, C. and Griffith, L. E. and Strifler, L. and Henderson, M. and Patterson, C. and Heckman, G. and Llewellyn, D. J. and Raina, P.},
  title   = {{Vitamin D, cognition, and dementia: a systematic review and meta-analysis}},
  journal = {Neurology},
  year    = {2012},
  doi     = {10.1212/wnl.0b013e31826c197f},
  pmid    = {23008220},
  url     = {https://doi.org/10.1212/wnl.0b013e31826c197f}
}