@article{elamin2011-21464431,
  author  = {Elamin, M. and Phukan, J. and Bede, P. and Jordan, N. and Byrne, S. and Pender, N. and Hardiman, O.},
  title   = {{Executive dysfunction is a negative prognostic indicator in patients with ALS without dementia}},
  journal = {Neurology},
  year    = {2011},
  doi     = {10.1212/wnl.0b013e318214359f},
  pmid    = {21464431},
  url     = {https://doi.org/10.1212/wnl.0b013e318214359f}
}