PubMed:32060789 / 152-157
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T23","span":{"begin":3,"end":4},"obj":"-LRB-"}],"text":"on (W"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok25","span":{"begin":3,"end":4},"obj":"("}],"text":"on (W"}