TY - RPRT TI - Advanced time-frequency methods for signal-averaged ECG analysis. AU - D L Jones AU - J S Touvannas AU - P Lander AU - D E Albert PY - 1992 DO - 10.1016/0022-0736(92)90099-l UR - https://pubmed.ncbi.nlm.nih.gov/1297692/ ID - 1297692 ER -