| Literature DB >> 18000120 |
J Claire Cameron, Lesley A Wallace, Syed Ahmed, Rina Duff, Martin Donaghy, David J Goldberg.
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Year: 2007 PMID: 18000120 PMCID: PMC2465674 DOI: 10.1136/jech.2007.059832
Source DB: PubMed Journal: J Epidemiol Community Health ISSN: 0143-005X Impact factor: 3.710