PMC:7001240 / 243-294 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7001240","sourcedb":"PMC","sourceid":"7001240","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7001240","text":"fected areas in China via air travel. We consider t","tracks":[]}