- Correspondence to: Dr Terhi Rahkonen, Division of Geriatrics, Department of Public Health and General Practice, University of Kuopio, PO Box 1627, 70211 Kuopio, Finland;
- Received August 19, 2002
- Accepted January 15, 2003
- Revised January 14, 2003
- First published June 1, 2003.
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