PMC:7347402 / 31391-31471
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T268","span":{"begin":0,"end":80},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"This work was supported by the National Natural Science Foundation of China (No."}