TY - RPRT TI - An EMG preamplifier system for biomechanical studies. AU - J A Foulke AU - S A Goldstein AU - T J Armstrong PY - 1981 DO - 10.1016/0021-9290(81)90062-2 UR - https://pubmed.ncbi.nlm.nih.gov/7263737/ ID - 7263737 ER -