| Literature DB >> 1670865 |
P R Gaffney, J J O'Leary, C T Doyle, A Gaffney, J Hogan, F Smew, P Annis.
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Year: 1991 PMID: 1670865 DOI: 10.1016/0140-6736(91)92201-c
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321