PMC:7454258 / 137565-137592
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T728","span":{"begin":0,"end":27},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Monitoring and surveillance"}