PMC:7366549 / 5924-5942
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T44","span":{"begin":0,"end":18},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Material \u0026 Methods"}