Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleTo the Editor:.AuthorsMadias, John E.AbstractA letter to the editor is presented in response to an article on the quantification of T-wave alternans (TWA) by Mikko Minkkinen published in a previous issue of the journal.SubjectsLETTERS to the editor; CARDIOLOGYPublicationJournal of Cardiovascular Electrophysiology, 2009, Vol 20, Issue 6, pE65ISSN1045-3873Publication typeLetterDOI10.1111/j.1540-8167.2009.01492.x