| Literature DB >> 5423147 |
M S Simberkoff, L Thomas, D McGregor, I Shenkein, B B Levin.
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Year: 1970 PMID: 5423147 DOI: 10.1056/NEJM197007162830302
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245