PMC:7454258 / 22676-22808 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7454258","sourcedb":"PMC","sourceid":"7454258","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7454258","text":"e the 1970s, Americans’ diets have changed significantly. For example, both portion sizes and frequency of snacking have increased, ","tracks":[]}