PMC:7134578 / 4891-4952 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7134578","sourcedb":"PMC","sourceid":"7134578","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7134578","text":" who had received chemotherapy or surgery within the last mon","tracks":[]}