Footnotes

• Handling editor Edward Carlton

• Twitter @louiseacullen

• Contributors All authors met the requirement for authorship. JHG, SW, WP and LC conceived of and designed the study. JHG and SW were involved in acquisition of data. JG analysed the data, JHG, SW, WP and LC assisted with interpretation of the data. JHG and SW drafted the work, and all authors revised the manuscript critically for important intellectual content.

• Funding JHG is funded by an Advance Queensland Fellowship.

• Competing interests The authors declare no competing interests related to this work. Outside of the current work, William Parsonage, Louise Cullen and Jaimi Greenslade have had research grants paid to their institution from Siemens Healthcare, Abbott Point of Care, and Beckman Coulter. Jaimi Greenslade is funded by an Advance Queensland Fellowship.

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

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