Submitted on: 08 June 2008.
Revised on: 12 September 2008.
Accepted on: 15 October 2008.
___________________Health and Technology---SPRINGER HEIDELBERG
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Submitted on: 06 July 2017.
Revised on: 18 August 2017.
Accepted on: 18 September 2017.
___________________Health and Technology---SPRINGER HEIDELBERG
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Submitted on: 25 April 2003.
Revised on: 13 June 2003.
Accepted on: 07 July 2003.
___________________Health and Technology---SPRINGER HEIDELBERG
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