- Dr R Barber, Institute for the Health of the Elderly, Newcastle General Hospital, Westgate Road, Newcastle upon Tyne, NE4 6BE, U.K. Tel +(0)191 256 3274 ext. 22986; fax +(0)191 219 5048; email
- Received August 26, 1998
- Revised February 10, 1999
- Accepted February 11, 1999
- First published July 1, 1999.
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