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Submitted on: 17 January 2003.
Revised on: 17 May 2003.
Accepted on: 07 July 2003.
___________________IATSS Research---ELSEVIER SCI LTD
Submitted on: 14 September 2021.
Revised on: 06 October 2021.
Accepted on: 20 October 2021.
___________________IATSS Research---ELSEVIER SCI LTD
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Submitted on: 25 December 2018.
Revised on: 06 March 2019.
Accepted on: 17 April 2019.
___________________IATSS Research---ELSEVIER SCI LTD
Submitted on: 03 August 1998.
Revised on: 20 October 1998.
Accepted on: 16 December 1998.
___________________IATSS Research---ELSEVIER SCI LTD
Submitted on: 27 January 2018.
Revised on: 05 May 2018.
Accepted on: 23 May 2018.
___________________IATSS Research---ELSEVIER SCI LTD
Submitted on: 18 March 2002.
Revised on: 24 May 2002.
Accepted on: 06 July 2002.
___________________IATSS Research---ELSEVIER SCI LTD
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