CORD-19:f820e5c342b0e3ce1af0905b69ebea927865a809 / 3248-3251
Annnotations
CORD-19_HIRAKI
{"project":"CORD-19_HIRAKI","denotations":[{"id":"T104","span":{"begin":0,"end":3},"obj":"DEL"}],"attributes":[{"id":"A79","pred":"Age","subj":"T104","obj":"period"}],"text":"6 h"}