PMC:7796291 / 17404-17632 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T149","span":{"begin":71,"end":196},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"aneously, compensating the overall charges on the filter surface [45]. Therefore, for such cases, the average surface potential over an area can be less meaningful than the variation of potential. In Figure 3, the surface potent"}