| Literature DB >> 18505614 |
David M G Halpin, Clare J Seamark, David A Seamark.
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Year: 2008 PMID: 18505614 PMCID: PMC2418989 DOI: 10.3399/bjgp08X299326
Source DB: PubMed Journal: Br J Gen Pract ISSN: 0960-1643 Impact factor: 5.386