PubMed:32064855 / 1201-1204
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T226","span":{"begin":0,"end":3},"obj":"NN"}],"text":"PCR"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok236","span":{"begin":0,"end":3},"obj":"NNP"}],"text":"PCR"}