TY - GEN AU - Madias,John E TI - T wave alternans detected in defibrillator electrograms SN - 1346-9843 PY - 2009///0601 KW - Defibrillators, Implantable KW - Electrocardiography KW - Humans KW - Tachycardia, Ventricular KW - diagnosis N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1253/circj.cj-08-1124 ER -