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Atypon

N Engl J Med. 1973 Feb 22;288(8):418. doi: 10.1056/nejm197302222880814.

International journal of epidemiology.

The New England journal of medicine

F J Ingelfinger

PMID: 4684048 DOI: 10.1056/nejm197302222880814

[No abstract available.]

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