PMC:7784830 / 21729-21860 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T166","span":{"begin":0,"end":131},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Vaccines are usually administered through needle injections, but can also be administered by mouth or sprayed into the nose’ [102]."}