PMC:7784824 / 18714-18779
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T195","span":{"begin":0,"end":65},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The sensitivity improved to 97% for IgA ELISA in the second week."}