PMC:1941754 / 47828-47910 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/1941754","sourcedb":"PMC","sourceid":"1941754","source_url":"http://www.ncbi.nlm.nih.gov/pmc/1941754","text":"Competing interests. The authors have declared that no competing interests exist.\n","tracks":[]}