PMC:7301188 / 19165-19197
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T192","span":{"begin":0,"end":32},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" χ2, P χ 2 = 18.661 P \u003c 0.01"}