Submitted on: 15 July 2008.
Revised on: 01 November 2008.
Accepted on: 23 November 2008.
___________________JMIR mHealth and uHealth---JMIR PUBLICATIONS, INC
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Submitted on: 01 July 2010.
Revised on: 30 August 2010.
Accepted on: 13 October 2010.
___________________JMIR mHealth and uHealth---JMIR PUBLICATIONS, INC
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Submitted on: 28 August 2011.
Revised on: 28 September 2011.
Accepted on: 20 October 2011.
___________________JMIR mHealth and uHealth---JMIR PUBLICATIONS, INC
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Submitted on: 13 March 2023.
Revised on: 17 April 2023.
Accepted on: 30 April 2023.
___________________JMIR mHealth and uHealth---JMIR PUBLICATIONS, INC