| Literature DB >> 4179570 |
D A Southgate, E M Widdowson, B J Smits, W T Cooke, C H Walker, N P Mathers.
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Year: 1969 PMID: 4179570 DOI: 10.1016/s0140-6736(69)91589-x
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321