The corresponding author should outline the author's contributions (other than those with a single author) to the article using the relevant Contributor roles taxonomy [CRediT] (https://casrai.org/credit/) roles on the title page. Names of authors must be given as initials (e.g. Robin David Turner; RDT contributed to the design and collection of data). Description should be divided in following categories, as applicable: concept, design, definition of intellectual content, literature search, clinical studies, experimental studies, data acquisition, data analysis, statistical analysis, manuscript preparation, manuscript editing and manuscript review. One or more author should take responsibility for the integrity of the work as a whole from inception to published article and should be designated as 'guarantor'.