| Literature DB >> 9616428 |
G D Friedman1, M Sadler, I S Tekawa, S Sidney.
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Year: 1998 PMID: 9616428 PMCID: PMC1756681 DOI: 10.1136/jech.52.3.202
Source DB: PubMed Journal: J Epidemiol Community Health ISSN: 0143-005X Impact factor: 3.710