PMC:2667511 / 15968-16023 JSONTXT

{"target":"http://pubannotation.org/docs/sourcedb/PMC/sourceid/2667511","sourcedb":"PMC","sourceid":"2667511","source_url":"https://www.ncbi.nlm.nih.gov/pmc/2667511","text":"Given two rules R1: X1 → Y1 and R2: X2 → Y2, we define:","tracks":[]}