PubMed:32111656 / 38-42
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T7","span":{"begin":0,"end":4},"obj":"NN"}],"text":"mass"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok9","span":{"begin":0,"end":4},"obj":"NN"}],"text":"mass"}