PMC:7784787 / 9773-9904 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T86","span":{"begin":0,"end":131},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"This is because the narrow jet crosses the laser sheet quickly, so that at any one-time there are few particles in the laser sheet."}