PMC:7435837 / 2391-2482 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7435837","sourcedb":"PMC","sourceid":"7435837","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7435837","text":"wledge gained by renowned researchers who have established and studied vaccination and phar","tracks":[]}