Submitted on: 31 August 2002.
Revised on: 24 September 2002.
Accepted on: 07 November 2002.
___________________Clinical Laboratory---CLIN LAB PUBL
Submitted on: 20 July 2004.
Revised on: 13 November 2004.
Accepted on: 03 December 2004.
___________________Clinical Laboratory---CLIN LAB PUBL
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Submitted on: 07 January 2000.
Revised on: 01 April 2000.
Accepted on: 18 April 2000.
___________________Clinical Laboratory---CLIN LAB PUBL
Submitted on: 29 May 1999.
Revised on: 12 July 1999.
Accepted on: 27 July 1999.
___________________Clinical Laboratory---CLIN LAB PUBL
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