. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Ann Thorac Surg. 2012 May 23;94(2):436–444. doi: 10.1016/j.athoracsur.2012.04.020
© 2012 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.