PubMed:32056249 / 581-588
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T91","span":{"begin":0,"end":7},"obj":"NNP"}],"text":"Concern"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok101","span":{"begin":0,"end":7},"obj":"NN"}],"text":"Concern"}