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Submitted on: 14 August 2000.
Revised on: 10 November 2000.
Accepted on: 14 December 2000.
___________________JOURNAL OF ORAL PATHOLOGY & MEDICINE
Submitted on: 08 April 2000.
Revised on: 06 May 2000.
Accepted on: 03 June 2000.
___________________JOURNAL OF ORAL PATHOLOGY & MEDICINE
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http://reply.papertrans.cn/2/185/18484/18484-35.png
Submitted on: 12 February 2003.
Revised on: 21 April 2003.
Accepted on: 09 June 2003.
___________________JOURNAL OF ORAL PATHOLOGY & MEDICINE