@article{berger1995-9222338,
  author  = {Berger, JR. and Concha, M.},
  title   = {{Progressive multifocal leukoencephalopathy: the evolution of a disease once considered rare}},
  journal = {Journal of neurovirology},
  year    = {1995},
  doi     = {10.3109/13550289509111006},
  pmid    = {9222338},
  url     = {https://doi.org/10.3109/13550289509111006}
}