| Literature DB >> 4811772 |
G W Comstock, V T Livesay, S F Woolpert.
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Year: 1974 PMID: 4811772 PMCID: PMC1775430 DOI: 10.2105/ajph.64.3.283
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308