Author version made available in accordance with the publisher's policy for non-mandated open access submission. Under Elsevier's copyright, non-mandated authors are permitted to make work available in an institutional repository.
NOTICE: this is the author’s version of a work that was accepted for publication in GLOBAL HEART. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in GLOBAL HEART, [VOL9, ISSUE1, (2014)] DOI:10.1016/j.gheart.2014.03.243