TY - RPRT TI - An impedance pneumograph utilizing an actively regulated constant-current source. AU - J Erlebacher AU - R Gilbert AU - J H Auchincloss PY - 1974 DO - 10.1152/jappl.1974.37.6.961 UR - https://pubmed.ncbi.nlm.nih.gov/4436234/ ID - 4436234 ER -