http://reply.papertrans.cn/2/108/10737/10737-31.png
Submitted on: 13 December 2015.
Revised on: 06 April 2016.
Accepted on: 21 April 2016.
___________________GERONTOLOGIST---OXFORD UNIV PRESS INC
http://reply.papertrans.cn/2/108/10737/10737-33.png
Submitted on: 04 May 2004.
Revised on: 01 August 2004.
Accepted on: 21 September 2004.
___________________GERONTOLOGIST---OXFORD UNIV PRESS INC
Submitted on: 06 December 2001.
Revised on: 30 December 2001.
Accepted on: 09 January 2002.
___________________GERONTOLOGIST---OXFORD UNIV PRESS INC
Submitted on: 20 September 2014.
Revised on: 15 December 2014.
Accepted on: 20 January 2015.
___________________GERONTOLOGIST---OXFORD UNIV PRESS INC