Footnotes

• Contributors RF, FLM, NB, J-MD, BE, RD, AD and MF designed the article. AD and MF performed the methodology and the literature review. RD and MF gathered the patients’ data. RF, FLM, NB, J-MD, BE, RD, AD and MF participated in the drafting of the manuscript. RF performed the critical revision of the manuscript. FLM, BE, AD and MF performed the final revision of the manuscript.

• 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.

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