Submitted on: 07 March 2014.
Revised on: 28 June 2014.
Accepted on: 08 July 2014.
___________________Journal of the Royal College of Physicians of Edinburgh
Submitted on: 06 October 2011.
Revised on: 22 December 2011.
Accepted on: 13 February 2012.
___________________Journal of the Royal College of Physicians of Edinburgh
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Submitted on: 07 April 2012.
Revised on: 23 June 2012.
Accepted on: 21 July 2012.
___________________Journal of the Royal College of Physicians of Edinburgh
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Submitted on: 17 December 2020.
Revised on: 03 February 2021.
Accepted on: 07 March 2021.
___________________Journal of the Royal College of Physicians of Edinburgh
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Submitted on: 12 June 2013.
Revised on: 05 October 2013.
Accepted on: 25 November 2013.
___________________Journal of the Royal College of Physicians of Edinburgh