Journal of Clinical Oncology publishes all articles on JCO.org in advance of print publication. This policy provides subscribers with the latest clinical research several weeks before it appears in print. All articles have been reviewed, copyedited, and typeset, and appear in the final form in which they will appear in the print journal. Once an article appears in print, it will be removed from the Early Release page and grouped with the other contents of the issue in which it appears. All articles below are citable by using the Digital Object Identifier (DOI), a unique number given to every article, and the posting date.