Statistics from Altmetric.com
Contributors IP: conception and design, draft preparation, final approval; AR: draft preparation, final approval; GS: draft revision, final approval; AF: draft revision, final approval.
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.
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