PMC:1624833 / 8642-8848 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/1624833","sourcedb":"PMC","sourceid":"1624833","source_url":"https://www.ncbi.nlm.nih.gov/pmc/1624833","text":"An illustration of the COP. Figure 2(a): A matrix that has the COP with the first two columns highlighted. Figure 2(b): Swapping the first two columns of the matrix demonstrates that the matrix has the COP.","tracks":[]}