Published Ahead of Print

These New Online manuscripts appear online as PDFs approximately 8 to 10 weeks before publication in the online editions of Circulation: Cardiovascular Quality and Outcomes. Each manuscript published online ahead of issue is citable, with the official publication date being the date of the manuscript's first online posting. Circulation: Cardiovascular Quality and Outcomes papers are assigned Digital Object Identifiers (DOIs), providing a persistent, permanent way to identify manuscripts published in the online environment.