TY  - RPRT
TI  - Inexpensive electrophysiologic calibration unit.
AU  - E G Duffin
AU  - L E Solberg
AU  - W G Hamilton
AU  - D H Singer
PY  - 1974
DO  - 10.1109/tbme.1974.324393
UR  - https://pubmed.ncbi.nlm.nih.gov/4852418/
ID  - 4852418
ER  -