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Submitted on: 30 November 1998.
Revised on: 25 December 1998.
Accepted on: 31 January 1999.
___________________DIAGNOSTICA---HOGREFE VERLAG
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Submitted on: 12 May 2015.
Revised on: 14 July 2015.
Accepted on: 05 August 2015.
___________________DIAGNOSTICA---HOGREFE VERLAG
Submitted on: 15 February 1998.
Revised on: 04 June 1998.
Accepted on: 30 June 1998.
___________________DIAGNOSTICA---HOGREFE VERLAG
Submitted on: 21 March 2001.
Revised on: 14 July 2001.
Accepted on: 11 September 2001.
___________________DIAGNOSTICA---HOGREFE VERLAG
Submitted on: 15 March 2017.
Revised on: 20 April 2017.
Accepted on: 12 May 2017.
___________________DIAGNOSTICA---HOGREFE VERLAG
Submitted on: 24 April 2011.
Revised on: 17 August 2011.
Accepted on: 20 September 2011.
___________________DIAGNOSTICA---HOGREFE VERLAG
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