TY - GEN AU - Leonard Taback C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1960-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.42 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1960 TI - Analog-digital conversion equipment for electrocardiographic data: ER -