Declarations

By signing below, each author confirms the following:

 I have made a substantial contribution to this work as described above and meet all four ICMJE authorship criteria.

 I have read and approved the final version of the manuscript submitted to LJD.

 I accept accountability for all aspects of the work and for the integrity of my contribution.

 I confirm that the manuscript is original, has not been published elsewhere, and is not under consideration by any other journal.

 I have disclosed any potential conflicts of interest in the manuscript and on the title page.

 I agree that any change in authorship (addition, removal, or reordering) after submission requires written approval from all authors and the Editor-in-Chief.