| Literature DB >> 4687868 |
R Levengood, P Lowinger, K Schooff.
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Year: 1973 PMID: 4687868 PMCID: PMC1775144 DOI: 10.2105/ajph.63.3.209
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308