| Literature DB >> 7901707 |
I Roberts, P Fallon, F J Kirkham, A Lloyd-Thomas, C Cooper, R Maynard, M Elliot, A D Edwards.
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Year: 1993 PMID: 7901707 DOI: 10.1016/0140-6736(93)92786-s
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321