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. 2020 Jun 25;124(3):2687–2701. doi: 10.1007/s11192-020-03587-2

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© Akadémiai Kiadó, Budapest, Hungary 2020

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Fig. 1 — a The number of Rxiv, PubMed and Scopus articles on COVID-19. b Histogram portraying the number of COVID-19 articles per submission date (data only for accepted articles). c Histogram portraying a number of accepted COVID-19 articles per acceptance date in a journal. d Histogram portraying the number of articles published each day in BioRxiv and MedRxiv. Color indicates whether the article was published in a journal. e Publications status for COVID-19 articles and other articles from the same journal during 2020. (Color figure online)