| Literature DB >> 12461117 |
T W Wong1, Y T Wun, T S Yu, W Tam, C M Wong, A H S Wong.
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Year: 2002 PMID: 12461117 PMCID: PMC1756999 DOI: 10.1136/jech.56.12.949
Source DB: PubMed Journal: J Epidemiol Community Health ISSN: 0143-005X Impact factor: 3.710