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Genetics Research International
Volume 2014, Article ID 154204, 8 pages
http://dx.doi.org/10.1155/2014/154204
Research Article

Power Estimation for Gene-Longevity Association Analysis Using Concordant Twins

1Epidemiology, Biostatistics and Biodemography, Institute of Public Health, University of Southern Denmark, J. B. Winsløws Vej 9B, 5000 Odense C, Denmark
2Department of Clinical Genetics, Odense University Hospital, 5000 Odense C, Denmark
3MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK

Received 29 June 2014; Revised 3 September 2014; Accepted 8 September 2014; Published 16 September 2014

Academic Editor: Francine Durocher

Copyright © 2014 Qihua Tan 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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