Statistics from Altmetric.com
MA-B and HS-B contributed equally.
Collaborators Mehrdad Amir-Behghadami, Homayoun Sadeghi-Bazargani .
Contributors MAB and HSB conceptualised and designed the study, contributed to the writing of the first draft of the manuscript, reviewed the revisions and approved the final manuscript as submitted.
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.
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.