| Literature DB >> 7142880 |
J D Harris, M Radford, M Wailoo, R G Carpenter, D Machin.
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Year: 1982 PMID: 7142880 PMCID: PMC1052203 DOI: 10.1136/jech.36.3.162
Source DB: PubMed Journal: J Epidemiol Community Health ISSN: 0143-005X Impact factor: 3.710