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Can Med Assoc J. 1981 April 15; 124(8): 985–990.
PMCID: PMC1705401

How to read clinical journals: IV. To determine etiology or causation.

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Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.0M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References.

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Freeman HJ. Dietary fibre and colonic neoplasia. Can Med Assoc J. 1979 Aug 4;121(3):291–296. [PMC free article] [PubMed]
  • Sackett DL. Bias in analytic research. J Chronic Dis. 1979;32(1-2):51–63. [PubMed]
  • Labarthe DR. Methodologic variation in case-control studies of reserpine and breast cancer. J Chronic Dis. 1979;32(1-2):95–104. [PubMed]
  • Feinstein AR. Clinical biostatistics. XX. The epidemiologic trohoc, the ablative risk ratio, and "retrospective" research. Clin Pharmacol Ther. 1973 Mar-Apr;14(2):291–307. [PubMed]
  • Mc Lellan AT, Woody GE, O'Brien CP. Development of psychiatric illness in drug abusers. Possible role of drug preference. N Engl J Med. 1979 Dec 13;301(24):1310–1314. [PubMed]
  • Ziel HK, Finkle WD. Increased risk of endometrial carcinoma among users of conjugated estrogens. N Engl J Med. 1975 Dec 4;293(23):1167–1170. [PubMed]

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