| Literature DB >> 5342419 |
J Koch, E L Stokstad, H E Williams, L H Smith.
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Year: 1967 PMID: 5342419 PMCID: PMC224664 DOI: 10.1073/pnas.57.4.1123
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205