PubMed:31996494 / 307-309
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T58","span":{"begin":0,"end":2},"obj":"IN"}],"text":"so"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok69","span":{"begin":0,"end":2},"obj":"IN"},{"id":"lookup12","span":{"begin":0,"end":2},"obj":"country_code"}],"text":"so"}