| Literature DB >> 1677730 |
M I Shafi, C B Finn, P Blomfield, E J Buxton, D M Leusley, J A Jordan.
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Year: 1991 PMID: 1677730 DOI: 10.1016/0140-6736(91)90527-v
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321