| Literature DB >> 7240364 |
A R Dyer, J Stamler, O Paul, R B Shekelle, J A Schoenberger, D M Berkson, M Lepper, P Collette, S Shekelle, H A Lindberg.
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Year: 1981 PMID: 7240364 DOI: 10.1016/0021-9681(81)90030-8
Source DB: PubMed Journal: J Chronic Dis ISSN: 0021-9681