Table of Contents
Arthritis
Volume 2014, Article ID 615784, 8 pages
http://dx.doi.org/10.1155/2014/615784
Research Article

Productivity Improvements in Hip and Knee Surgery

1Department of Economics, Duke University, P.O. Box 90097, Durham, NC 27708-0097, USA
2Department of Sociology and Center for the Study of Aging, Duke University, P.O. Box 90088, Durham, NC 27708-0088, USA
3Center for the Study of Aging, Duke University Medical Center, P.O. Box 3003, Durham, NC 27710, USA

Received 17 October 2013; Accepted 9 January 2014; Published 20 February 2014

Academic Editor: Changhai Ding

Copyright © 2014 Frank A. Sloan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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