PMC:7784787 / 11266-11421 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T100","span":{"begin":0,"end":155},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"These leakage jets tend to be directed over the forehead, or across the cheek, and are only partly moved into the laser cone by the extraction air current."}