| Literature DB >> 2883467 |
C W Helm, G E Smart, J A Gray, A D Cumming, A T Lambie, I W Smith, N C Allan.
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Year: 1987 PMID: 2883467 DOI: 10.1016/s0140-6736(87)91700-4
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321