PMC:4693303 / 26782-26863 JSONTXT

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{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/4693303","sourcedb":"PMC","sourceid":"4693303","source_url":"https://www.ncbi.nlm.nih.gov/pmc/4693303","text":"(a) An immediate vaccination “ring” group of 48 clusters of 4123 individuals; and","tracks":[]}