| Literature DB >> 17707758 |
Harriette G C Van Spall1, Jason D Roberts, Anna M Sawka, Carol J Swallow, Susanna Mak.
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Year: 2007 PMID: 17707758 DOI: 10.1016/S0140-6736(07)61302-6
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321