@misc{indiciaea388033e4000,
  title = {A linear current amplifier for stimulation in man.},
  author = {R J Johns and G N Webb},
  year = {1967},
  doi = {10.1007/bf02479108},
  url = {https://pubmed.ncbi.nlm.nih.gov/6043993/},
  note = {Source identifier: 6043993}
}