PMC:1592098 / 76729-76811 JSONTXT

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{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/1592098","sourcedb":"PMC","sourceid":"1592098","source_url":"https://www.ncbi.nlm.nih.gov/pmc/1592098","text":"An arbitrary node, r, is chosen as the root in the tree, leading to a rooted tree.","tracks":[]}