PubMed:32083638 / 188-197
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T28","span":{"begin":0,"end":9},"obj":"NN"}],"text":"formation"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok38","span":{"begin":0,"end":9},"obj":"NN"}],"text":"formation"}