This article (1) is being retracted at the request of the Clinical Cancer Research editors. The editors have been made aware that this article contains an extensive amount of direct duplication of text from articles that were previously published by the same author (2–4). In accordance with Journal policies on duplicate publication and to ensure that the research record is correct, the Clinical Cancer Research editors have decided to retract the article.
A copy of this retraction notice was sent to the last known email address for the author. The author agreed to this retraction.