| Literature DB >> 4339969 |
M Nielsen, M Blenkner, M Bloom, T Downs, H Beggs.
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Year: 1972 PMID: 4339969 PMCID: PMC1530370 DOI: 10.2105/ajph.62.8.1094
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308