PMC:6640909 / 20399-20462 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/6640909","sourcedb":"PMC","sourceid":"6640909","source_url":"https://www.ncbi.nlm.nih.gov/pmc/6640909","text":"Spirometry as part of the patient work-up should be considered.","tracks":[]}