PMC:4137988 / 35233-35309 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/4137988","sourcedb":"PMC","sourceid":"4137988","source_url":"https://www.ncbi.nlm.nih.gov/pmc/4137988","text":"Cross-sectional: FEV1, prevalence of asthma and wheeze; cohort: FEV1 decline","tracks":[]}