PMC:7551987 / 18003-18032
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T114","span":{"begin":0,"end":4},"obj":"Sentence"},{"id":"T115","span":{"begin":5,"end":29},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"2.7. Basic Reproductive Ratio"}