Footnotes

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• Contributors All the listed authors on this paper fulfil the criteria of authorship. They have all substantially contributed to the content of this review article and have approve the final submitted version.

• 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 None declared.

• Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.

• Patient consent for publication Not required.

• Provenance and peer review Commissioned; internally peer reviewed.

• Data availability statement All data relevant to the study are included in the article or uploaded as supplementary information

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