| Literature DB >> 5058855 |
R B Shekelle, H L Klawans, A M Ostfeld, H M Tufo, S W Kimble, J Waxman, J M MacLean, M A Erlich.
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Year: 1972 PMID： 5058855 PMCID： PMC1530270 DOI： 10.2105/ajph.62.2.177
Source DB: PubMed Journal: Am J Public Health ISSN： 0090-0036 Impact factor: 9.308