Submitted on: 07 June 1999.
Revised on: 10 July 1999.
Accepted on: 24 August 1999.
___________________JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
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Submitted on: 13 December 2002.
Revised on: 04 April 2003.
Accepted on: 10 May 2003.
___________________JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
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Submitted on: 05 November 2011.
Revised on: 27 February 2012.
Accepted on: 20 March 2012.
___________________JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
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