PMC:7796291 / 13345-13461 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T120","span":{"begin":98,"end":102},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"en analyzing the morphological changes in the later sections, first-hand measurements were used.\n\n3.1. Filtration Pe"}