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Submitted on: 16 May 2015.
Revised on: 28 August 2015.
Accepted on: 09 September 2015.
___________________HUMAN STUDIES---SPRINGER
Submitted on: 04 March 2013.
Revised on: 20 April 2013.
Accepted on: 05 May 2013.
___________________HUMAN STUDIES---SPRINGER
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Submitted on: 27 May 2016.
Revised on: 24 June 2016.
Accepted on: 03 August 2016.
___________________HUMAN STUDIES---SPRINGER
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