**6.2 Literature search**

An online search of international database sources, that is, Google Scholar, Research Gate, and Google was carried out to identify relevant studies reported from Pakistan from 2015 to 2023. A total of 310 searches were carried out. The reference list of the searched studies was further reviewed for any relevant publication. The duplicate article found using the above-mentioned databases was removed using EndnoteX7 (Thomson Reuters, New York, NY, USA). The searched sources of 500 articles are given in **Table 2**.
