| Literature DB >> 22878850 |
John Humphrey1, Gregory Black, Laurianne Wild.
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Year: 2012 PMID: 22878850 PMCID: PMC3579961 DOI: 10.1007/s11606-012-2175-5
Source DB: PubMed Journal: J Gen Intern Med ISSN: 0884-8734 Impact factor: 5.128