Case-control studies remain a cornerstone of observational epidemiology, enabling efficient investigation of associations between exposures and rare or costly outcomes. At their heart lies the careful ...

Objectives: Case management is commonly used by health plans to attempt to improve the care received by their members who have complex needs, such as those who undergo transplantation. There are few ...

Bhattacharya attacked study's test-negative design, a staple of vaccine effectiveness rese ...