PMC:4137988 / 46754-46821 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":"Age categories, sex, BMI, parental asthma, number of older siblings","tracks":[]}