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Submitted on: 13 January 2010.
Revised on: 04 February 2010.
Accepted on: 31 March 2010.
___________________JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
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Submitted on: 12 September 2008.
Revised on: 03 November 2008.
Accepted on: 22 November 2008.
___________________JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
Submitted on: 18 September 1998.
Revised on: 29 November 1998.
Accepted on: 20 December 1998.
___________________JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
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