PMC:7796291 / 9203-9365 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7796291","sourcedb":"PMC","sourceid":"7796291","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7796291","text":"The surface potential of filter media was measured using an electrostatic voltmeter (Model 542A, Trek, Lockport, NY, USA), by holding the filter media in the air.","tracks":[{"project":"LitCovid-sentences","denotations":[{"id":"T82","span":{"begin":0,"end":162},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"attributes":[{"subj":"T82","pred":"source","obj":"LitCovid-sentences"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"LitCovid-sentences","color":"#ece193","default":true}]}]}}