PMC:7152911 / 106721-106832 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T874","span":{"begin":0,"end":111},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The principle relies on conductivity change in the sample via the production or consumption of charged species."}