LitCovid
https://www.ncbi.nlm.nih.gov/research/coronavirus/
OGER
https://coree.github.io/blah7/
PubDic
http://pubdictionaries.org/
https://github.com/thepanacealab/annotated_twitter_covid19_dataset
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WMTBiomedical
https://github.com/biomedical-translation-corpora/training-data-pubannotation
JMeSH
Uncommon
MQI
https://github.com/Nwj-9/Measurable-Quantitative-Information-Annotation
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