3.7 Limitations
It is important to acknowledge that bibliometric studies carry a number
of limitations. Firstly, we only focused on articles that have been
published in academic journals indexed in Web of Science, excluding the
amount of work that may have been published in other formats (e.g.
books, reports, and national journals). Publications that did not
include the used search terms in the title might have been left out of
our analysis. Nevertheless, our results reflect perceived interest by
the scientific community. In addition, this analysis was restricted to
international journals in English, therefore a linguistic bias may also
exist. Additionally, the number of publications and citations should be
noted as a proxy of the scientific relevance of a subject and not of the
quality of the underlying work and publication itself. Nevertheless, we
believe that our findings offer a valid representation within this
research field at a global level.