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J Epidemiol Community Health. 2002 Jul;56(7):488-91.
Chang WC.
Canadian VIGOUR Centre Research Group, Department of Medicine, 214 Heritage Research Centre, University of Alberta, Edmonton, Alberta, Canada T6G 2S2. weiching-chang@ualberta.ca
PMID: 12080154 [PubMed - indexed for MEDLINE]PMCID: PMC1732207Free PMC Article
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