PMC:7784787 / 12280-12497 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T108","span":{"begin":38,"end":198},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ion against doing so for two reasons. As seen in the no-mask image (Figure 3A), a narrow, fast-moving jet appears dim due to the small area of laser sheet it covers, despite carrying a large volume. This weakness coul"}