| Literature DB >> 2884388 |
M Covington, K Sikora, M J Turner, J O White, P Moore, W P Soutter.
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Year: 1987 PMID: 2884388 DOI: 10.1016/s0140-6736(87)92706-1
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321