| Literature DB >> 6118798 |
A Laupacis, P A Keown, R A Ulan, N R Sinclair, C R Stiller.
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Year: 1981 PMID: 6118798 DOI: 10.1016/s0140-6736(81)92846-4
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321