Journal article
Users' guides to the medical literature. II. How to use an article about therapy or prevention. A. Are the results of the study valid? Evidence-Based Medicine Working Group.
Authors
Guyatt GH; Sackett DL; Cook DJ
Journal
JAMA: The Journal of the American Medical Association, Vol. 270, No. 21, pp. 2598–2601
Publisher
American Medical Association (AMA)
Publication Date
December 1, 1993
DOI
10.1001/jama.270.21.2598
ISSN
0098-7484