PubMed:32238504 / 135-146
Annnotations
{"target":"https://pubannotation.org/docs/sourcedb/PubMed/sourceid/32238504","sourcedb":"PubMed","sourceid":"32238504","source_url":"https://www.ncbi.nlm.nih.gov/pubmed/32238504","text":"challenging","tracks":[{"project":"LitCovid-TimeML","denotations":[{"id":"tok25","span":{"begin":0,"end":11},"obj":"VBG"},{"id":"event10","span":{"begin":0,"end":11},"obj":"OCCURRENCE"}],"attributes":[{"subj":"tok25","pred":"source","obj":"LitCovid-TimeML"},{"subj":"event10","pred":"source","obj":"LitCovid-TimeML"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"LitCovid-TimeML","color":"#b5ec93","default":true}]}]}}