| Literature DB >> 5689184 |
J E Fitzpatrick, C C Kennedy, M G McGeown, D G Oreopoulos, J H Robertson, M A Soyannwo.
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Year: 1968 PMID: 5689184 DOI: 10.1038/217861a0
Source DB: PubMed Journal: Nature ISSN: 0028-0836 Impact factor: 49.962