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Submitted on: 21 December 2011.
Revised on: 18 February 2012.
Accepted on: 22 March 2012.
___________________Advances in Autism---EMERALD GROUP PUBLISHING LTD
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Submitted on: 23 April 2016.
Revised on: 01 July 2016.
Accepted on: 11 July 2016.
___________________Advances in Autism---EMERALD GROUP PUBLISHING LTD
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