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http://reply.papertrans.cn/2/192/19198/19198-32.png
Submitted on: 15 January 2004.
Revised on: 09 February 2004.
Accepted on: 26 February 2004.
___________________JOURNAL OF SCHOOL HEALTH---WILEY
Submitted on: 01 January 2018.
Revised on: 27 April 2018.
Accepted on: 19 May 2018.
___________________JOURNAL OF SCHOOL HEALTH---WILEY
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Submitted on: 21 November 2003.
Revised on: 12 January 2004.
Accepted on: 05 February 2004.
___________________JOURNAL OF SCHOOL HEALTH---WILEY