Footnotes

• Contributors ML devised the project. MAL designed the study. Both authors analysed the results. Both authors discussed the results and contributed to the final manuscript.

• Funding The research leading to these results was undertaken as part of an ASPIRE Fellowship with the Royal College of Physicians of Ireland. Financial support for the fellowship was received from the National Doctors Training and Planning (NDTP).

• Competing interests None declared.

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