Submitted on: 14 February 2011.
Revised on: 19 March 2011.
Accepted on: 25 April 2011.
___________________JOURNAL OF PSYCHOACTIVE DRUGS---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
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Submitted on: 26 November 2007.
Revised on: 16 January 2008.
Accepted on: 25 February 2008.
___________________JOURNAL OF PSYCHOACTIVE DRUGS---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
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Submitted on: 26 September 2002.
Revised on: 01 January 2003.
Accepted on: 11 February 2003.
___________________JOURNAL OF PSYCHOACTIVE DRUGS---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
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