| Literature DB >> 18038065 |
Nick K Schneider, Thomas E Novotny.
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Year: 2007 PMID: 18038065 PMCID: PMC2636489 DOI: 10.2471/blt.07.034797
Source DB: PubMed Journal: Bull World Health Organ ISSN: 0042-9686 Impact factor: 9.408