| Literature DB >> 5039507 |
P H Hughes, N W Barker, G A Crawford, J H Jaffe.
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Year: 1972 PMID: 5039507 PMCID: PMC1530426 DOI: 10.2105/ajph.62.7.995
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308