TY - RPRT TI - Decrease in canine endocardial and epicardial electrogram voltages with exercise: implications for pacemaker sensing. AU - J T Bricker AU - K A Ward AU - A Zinner AU - P C Gillette PY - 1988 DO - 10.1111/j.1540-8159.1988.tb06007.x UR - https://pubmed.ncbi.nlm.nih.gov/2453043/ ID - 2453043 ER -