Contribution of Iran in COVID-19 studies: a bibliometrics analysis.
Background
Iran is fighting heroically against COVID-19. Due to the importance of scientific publications in better dealing with this stubborn virus, this study was conducted aiming at reviewing COVID-19 publications by Iranian scientists.


Methods
We searched for COVID-19 and all its related keywords in the Web of Science (WOS), Scopus and PubMed databases to find documents published by Iranian authors until July 10, 2020. Duplicates documents were excluded, and bibliographic parameters were evaluated. Co-authorship matrix was calculated using Bibexcel, and visualizations were done using VOSviewer.


Results
A total of 849 documents from 3450 Iranian researchers (5.5 authors per document) were retrieved from WOS, PubMed, and Scopus and Iran ranked 12th and 13th in WOS and Scopus in terms of the number of publications. The average citation per document was 2.2 with the h-index of 18. Original articles and letters were the most common formats for Iranian publications. The Journal of Military Medicine has published the highest number of documents. Iranian authors have mostly collaborated with researchers from the United States, Italy, the UK, and Canada, respectively. The co-occurrence network for keywords represented five publication clusters in the collection, and the largest clusters were related to epidemiological studies and public health, followed by clinical studies on COVID-19.


Conclusion
Iranian researchers have had a significant scientific contribution in various areas of the disease. However, the network of studies has not been sufficiently cohesive, and more coherent collaboration between researchers at the national and international levels should be on the agenda of research policymakers in the country.
['Shamsi|Amrollah|A|https://orcid.org/0000-0001-6528-9341', 'Mansourzadeh|Mohammad Javad|MJ|https://orcid.org/0000-0002-0666-7928', 'Ghazbani|Arash|A|https://orcid.org/0000-0002-5569-7330', 'Khalagi|Kazem|K|https://orcid.org/0000-0002-0890-6232', 'Fahimfar|Noushin|N|https://orcid.org/0000-0001-6205-9794', 'Ostovar|Afshin|A|https://orcid.org/0000-0001-8670-5797']
Iran COVID-19 Bibliometrics Publications Coronavirus SARS-CoV-2