Submitted on: 25 May 2001.
Revised on: 07 July 2001.
Accepted on: 09 August 2001.
___________________JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
Submitted on: 14 May 2004.
Revised on: 01 September 2004.
Accepted on: 15 September 2004.
___________________JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
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Submitted on: 13 June 2004.
Revised on: 30 July 2004.
Accepted on: 16 August 2004.
___________________JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
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