PMC:7784824 / 18639-18713
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T194","span":{"begin":0,"end":74},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The IgA ELISA was most sensitive the first week after symptom onset (71%)."}