| Literature DB >> 19465225 |
Gerald Gartlehner, Bradley N Gaynes, Richard A Hansen, Kathleen N Lohr.
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Year: 2009 PMID: 19465225 DOI: 10.1016/S0140-6736(09)60978-8
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321