Is your clinical question a DIAGNOSIS question?
By using combinations of subject headings, subheadings, and keywords, you will retrieve articles related to diagnosis questions -- those that report on the "sensitivity and specificity" and the validity of diagnostic tests. Sensitivity and Specificity diagnostic use (du) The .ti,ab,sh. that you see above indicate that you are looking for these words in the titles (ti) , abstracts (ab), or subject headings (sh) of the articles. The $ indicates a wild card character or truncation.
False Negative Reactions
False Positive Reactions
Predictive Value of tests
Diagnostic Errors
Diagnosis, Differential
Likelihood Functions
diagnosis (di)