Footnotes

• Contributors JM and PO contributed equally to the planning and design of the work. JM drafted a first version of the manuscript. PO made critial revisions and suggestions for improvement. Both authors agreed on the final version.

• Competing interests JM has no competing interests. PO has received speaker honoraria from Philipps and Abbott Medical.

• Provenance and peer review Commissioned; internally peer reviewed.

• Author note References which include a * are considered to be key references.