Statistics from Altmetric.com
Competing interests None.
Data all three electronic databases used (Index to Theses, Web of Knowledge and SCOPUS) are in the public domain, subject to a subscription fee.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.