| Literature DB >> 1679180 |
M Hultén, S Armstrong, P Challinor, C Gould, G Hardy, P Leedham, T Lee, C McKeown.
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Year: 1991 PMID: 1679180 DOI: 10.1016/0140-6736(91)90652-6
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321