The necessity for research on the elderly in iran.
Researcher, Leiden University Medical Center, Department of Gerontology and Geriatrics, C2-R, PO Box 9600, 2300 RC Leiden, The Netherlands. Tel: +31 71 5266546. E-mail:  Shafiee@leydenacademy.nl.
Akbar
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Shafiee
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van Bodegom