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Submitted on: 22 November 2001.
Revised on: 19 March 2002.
Accepted on: 07 May 2002.
___________________Journal of Prevention---SPRINGER
Submitted on: 06 February 2010.
Revised on: 06 March 2010.
Accepted on: 04 April 2010.
___________________Journal of Prevention---SPRINGER
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Submitted on: 05 May 1999.
Revised on: 31 July 1999.
Accepted on: 10 August 1999.
___________________Journal of Prevention---SPRINGER
Submitted on: 23 July 2014.
Revised on: 03 September 2014.
Accepted on: 16 October 2014.
___________________Journal of Prevention---SPRINGER
http://reply.papertrans.cn/2/190/18904/18904-19.png
Submitted on: 01 October 2021.
Revised on: 07 November 2021.
Accepted on: 21 December 2021.
___________________Journal of Prevention---SPRINGER