PMC:1459172 / 6619-6822 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/1459172","sourcedb":"PMC","sourceid":"1459172","source_url":"https://www.ncbi.nlm.nih.gov/pmc/1459172","text":"3 If (i, j) ∈ S and (k, l) ∈ S with i \u003ck, then either i \u003cj \u003ck \u003cl or i \u003ck \u003cl \u003cj. This condition rules out knots and pseudoknots. Together with condition 1 it implies that S is a circular matching [32,33].","tracks":[]}