| Literature DB >> 5096636 |
J O Nielsen, O Dietrichson, P Elling, P Christoffersen.
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Year: 1971 PMID: 5096636 DOI: 10.1056/NEJM197111182852101
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245