@article{majounie2012-22406228,
  author  = {Majounie, E. and Renton, A. E. and Mok, K. and Dopper, E. G. and Waite, A. and Rollinson, S. and Chiò, A. and Restagno, G. and others},
  title   = {{Frequency of the C9orf72 hexanucleotide repeat expansion in patients with amyotrophic lateral sclerosis and frontotemporal dementia: a cross-sectional study}},
  journal = {The Lancet. Neurology},
  year    = {2012},
  doi     = {10.1016/s1474-4422(12)70043-1},
  pmid    = {22406228},
  url     = {https://doi.org/10.1016/s1474-4422(12)70043-1}
}