Footnotes

• Contributors The first author, ES, conceived the research project, conducted a background literature search, interviewed the subjects, conducted independent analysis and completed write-up of the paper. The second author, RS, conducted independent analysis and reviewed the manuscript prior to submission. Following independent analysis, both authors discussed and amalgamated their findings to form the final analysis.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests The first author acted as clinical supervisor for one of the subjects and provided clinical advice during the placement of the other subject. The second author is a current military GPST.

• Provenance and peer review Not commissioned; internally peer reviewed.