| Literature DB >> 11707490 |
G Richardson1, M R Evans, D Westmoreland.
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Year: 2001 PMID: 11707490 PMCID: PMC1731796 DOI: 10.1136/jech.55.12.934
Source DB: PubMed Journal: J Epidemiol Community Health ISSN: 0143-005X Impact factor: 3.710