Observational studies are often in peril of unmeasured confounding. Instrumental variable analysis is a method for controlling for unmeasured confounding. As yet, theory on instrumental variable ...

Panel count data often occur in long-term studies that concern occurrence rate of a recurrent event. Methods have been proposed for regression analysis of panel count data, but most of the existing ...

Observations, findings, and recommendations -- A. Overview of fire protection in buildings -- B. Structural steel and steel connections -- C. Limited metallurgical examination -- D. WTC steel data ...