http://reply.papertrans.cn/2/170/16931/16931-11.png
Submitted on: 04 October 2001.
Revised on: 28 December 2001.
Accepted on: 20 January 2002.
___________________Journal of Frailty & Aging---SPRINGER BASEL AG
Submitted on: 12 April 2021.
Revised on: 23 June 2021.
Accepted on: 13 August 2021.
___________________Journal of Frailty & Aging---SPRINGER BASEL AG
http://reply.papertrans.cn/2/170/16931/16931-14.png
http://reply.papertrans.cn/2/170/16931/16931-15.png
http://reply.papertrans.cn/2/170/16931/16931-16.png
http://reply.papertrans.cn/2/170/16931/16931-17.png
Submitted on: 29 May 2012.
Revised on: 19 June 2012.
Accepted on: 09 August 2012.
___________________Journal of Frailty & Aging---SPRINGER BASEL AG
Submitted on: 07 January 2004.
Revised on: 12 February 2004.
Accepted on: 19 March 2004.
___________________Journal of Frailty & Aging---SPRINGER BASEL AG
http://reply.papertrans.cn/2/170/16931/16931-20.png