- Correspondence to Dr Vladimir Canudas-Romo, Max-Planck Odense Center for the Biodemography of Aging, University of Southern Denmark, J.B. Winsløws Vej 9, 5000 Odense C, Denmark;
- Received November 26, 2015
- Revised May 30, 2016
- Accepted July 4, 2016
- First published July 23, 2016.
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