Tang, Man-Lai Confidence interval for rate ratio in a 2 x 2 table with structural zero: an application in assessing false-negative rate ratio when combining two diagnostic tests. [electronic resource] - Biometrics Jun 2004 - 550-5; discussion 555 p. digital Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Comment ISSN: 0006-341X Standard No.: 10.1111/j.0006-341X.2004.203_1.x doi Subjects--Topical Terms: BiometryConfidence IntervalsData Interpretation, StatisticalDiagnostic Tests, Routine--statistics & numerical dataFalse Negative ReactionsHumansNasopharyngeal Neoplasms--diagnostic imagingTomography, Emission-Computed, Single-PhotonTomography, X-Ray Computed