| Literature DB >> 9933495 |
W Clark1, M Lipkin, H Graman, J Shorey.
Abstract
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Year: 1999 PMID: 9933495 PMCID: PMC1496868 DOI: 10.1046/j.1525-1497.1999.00266.x
Source DB: PubMed Journal: J Gen Intern Med ISSN: 0884-8734 Impact factor: 5.128