. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Ann Thorac Surg. 2012 Mar 17;93(5):1549–1555. doi: 10.1016/j.athoracsur.2012.01.059
© 2012 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.