Submitted on: 20 August 1998.
Revised on: 17 October 1998.
Accepted on: 13 December 1998.
___________________HEALTH EDUCATION JOURNAL---SAGE PUBLICATIONS LTD
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Submitted on: 27 February 2009.
Revised on: 23 June 2009.
Accepted on: 04 August 2009.
___________________HEALTH EDUCATION JOURNAL---SAGE PUBLICATIONS LTD
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Submitted on: 25 September 1998.
Revised on: 23 December 1998.
Accepted on: 25 January 1999.
___________________HEALTH EDUCATION JOURNAL---SAGE PUBLICATIONS LTD