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Previous Volume 341:208-210 July 15, 1999 Number 3 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

	Full Text Purchase this article Add to Personal Archive Add to Citation Manager Notify a Friend E-mail When Cited Related Article by Wellens, H. J.J. Related Article by Michaelides, A. P. PubMed Citation

To the Editor: The key to the validity of any study of a diagnostic test is a systematic comparison with an accepted gold standard. Using the coronary angiogram as the gold standard, Michaelides et al. (Feb. 4 issue)¹ conclude that the use of right-sided leads improves the diagnostic performance of the exercise electrocardiogram.

Most studies of exercise electrocardiography that use coronary angiography as a gold standard suffer from a sequential workup bias: the decision whether or not to perform coronary angiography rests in the hands of clinicians who are aware of the results of exercise electrocardiography. Patients with normal results . . . [Full Text of this Article]

References

This article has been cited by other articles:

• Friedenberg, R. M. (2003). Patient-Doctor Relationships. Radiology 226: 306-308 [Full Text]