| Literature DB >> 17980727 |
John Macleod, George Davey Smith, Matthew Hickman, Matthias Egger.
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Year: 2007 PMID: 17980727 DOI: 10.1016/S0140-6736(07)61651-1
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321