. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Arch Phys Med Rehabil. 2012 Jul 5;93(12):2360–2366. doi: 10.1016/j.apmr.2012.06.022
© 2012 The American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.