Instrumentation in relation to electromyography; factors influencing recording and interpretation of electromyograms.

@article{Schwartz1949InstrumentationIR,
  title={Instrumentation in relation to electromyography; factors influencing recording and interpretation of electromyograms.},
  author={Robert P. Schwartz and A L HEATH and F W HUDSON},
  journal={Archives of physical medicine and rehabilitation},
  year={1949},
  volume={30 6},
  pages={383-94}
}