| Literature DB >> 9578867 |
M Porta1, N Malats, E Morell, G Gomez, M Gallén, F Macià, M Casamitjana, X Fabregat.
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Year: 1998 PMID: 9578867 PMCID: PMC1756669 DOI: 10.1136/jech.52.2.137
Source DB: PubMed Journal: J Epidemiol Community Health ISSN: 0143-005X Impact factor: 3.710