PMC:7536914 / 3291-3352 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7536914","sourcedb":"PMC","sourceid":"7536914","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7536914","text":"Spirometry performed on site immediately prior to appointment","tracks":[]}