- Correspondence to Dr Klaas A Hartholt, Department of Internal Medicine, Section of Geriatric Medicine, Erasmus MC, University Medical Center Rotterdam, P.O. Box 2040, Rotterdam 3000 CA, The Netherlands;
- Received September 11, 2012
- Revised February 24, 2013
- Accepted March 17, 2013
- First published April 16, 2013.
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