| Literature DB >> 12241962 |
Nick Pigott, Vas Novelli, Suneel Pooboni, Richard Firmin, Allan Goldman.
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Year: 2002 PMID: 12241962 DOI: 10.1016/S0140-6736(02)09797-0
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321