| Literature DB >> 17364242 |
Richard M Hoffman, Deborah L Helitzer.
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Year: 2007 PMID: 17364242 PMCID: PMC2219710 DOI: 10.1007/s11606-007-0167-7
Source DB: PubMed Journal: J Gen Intern Med ISSN: 0884-8734 Impact factor: 5.128