PMC:7068161 / 4047-4145
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T30","span":{"begin":0,"end":98},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Large uncertainty remains regarding the severity of disease, case fatality ratios and risk groups."}