RT Journal Article SR Electronic A1 Helwick, Caroline T1 ALPHA: T-Wave Alternans Testing Hospital JF MD Conference Express YR 2007 FD SAGE Publications VO 7 IS 1 SP 15 OP 15 DO 10.1177/155989770700700105 UL http://mdc.sagepub.com/content/7/1/15.1.abstract AB A noninvasive microvolt T-wave alternans test in patients with nonischemic cardiomyopathy can identify patients who do not need an implantable cardiac defibrillator, as presented in the results of the T-Wave Alternans in Patients with Heart Failure Trial [ALPHA].