Number of COVID-related publications in each publication type according to PubMed
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资源简介：
The PubMed search was conducted on March 26, 2022, to find out the number of publications in COVID-19 research for each category of publication type defined in PubMed. <br><br>The PubMed search was conducted using the following search terms:(((COVID[Title/Abstract]) OR (COVID-19[Title/Abstract])) OR (SARS-CoV-2[Title/Abstract])) AND (("2020/01"[Date - Publication] : "2020/11"[Date - Publication])) AND X<sup>a</sup>[PT]<br><sup>a</sup>X represents one of seventy-nine publication types in PubMed.<br><br>
创建时间：
2022-03-27
