Authorship

Authorship should reflect genuine intellectual contribution. In line with widely accepted criteria, each author is expected to have contributed to:

• the conception or design of the work, or the acquisition, analysis, or interpretation of data; and
• drafting the work or revising it critically for important intellectual content; and
• final approval of the version to be published; and
• agreement to be accountable for all aspects of the work.

Those who contributed but do not meet all criteria (for example, funding acquisition or general supervision) should be recognised in the acknowledgements. The corresponding author is responsible for ensuring that all listed authors have approved the manuscript and its authorship order, and that no one who qualifies has been omitted.