| Literature DB >> 7904014 |
D Schellenberg, A Bonington, C M Champion, R Lancaster, S Webb, J Main.
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Year: 1994 PMID: 7904014 DOI: 10.1016/s0140-6736(94)90960-1
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321