PMC:2728203 / 40351-40375 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/2728203","sourcedb":"PMC","sourceid":"2728203","source_url":"https://www.ncbi.nlm.nih.gov/pmc/2728203","text":"Medium (2 ≤ ∣i − j∣ ≤ 4)","tracks":[]}