@article{johnson2012-23053547,
  author  = {Johnson, E. J.},
  title   = {{A possible role for lutein and zeaxanthin in cognitive function in the elderly}},
  journal = {The American journal of clinical nutrition},
  year    = {2012},
  doi     = {10.3945/ajcn.112.034611},
  pmid    = {23053547},
  url     = {https://doi.org/10.3945/ajcn.112.034611}
}