PMC:7784828 / 2081-2198 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7784828","sourcedb":"PMC","sourceid":"7784828","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7784828","text":" usually takes 10–15 years to develop a vaccine, in less than a year, promising results from phase III clinical trial","tracks":[]}