PMC:7160442 / 6601-6779 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7160442","sourcedb":"PMC","sourceid":"7160442","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7160442","text":"Serological studies have been started in several European countries to define population immunity and studies on the duration of immunity will need to be conducted in the future.","tracks":[{"project":"LitCovid-sentences","denotations":[{"id":"T40","span":{"begin":0,"end":178},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"attributes":[{"subj":"T40","pred":"source","obj":"LitCovid-sentences"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"LitCovid-sentences","color":"#b693ec","default":true}]}]}}