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Submitted on: 01 October 2000.
Revised on: 28 January 2001.
Accepted on: 20 February 2001.
___________________Aging Medicine and Healthcare---ASIA PACIFIC LEAGUE CLINICAL GERONTOLOGY & GERIATRICS
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Submitted on: 07 August 2018.
Revised on: 09 November 2018.
Accepted on: 20 December 2018.
___________________Aging Medicine and Healthcare---ASIA PACIFIC LEAGUE CLINICAL GERONTOLOGY & GERIATRICS