A new BMJ collection examines how well designed large scale research can benefit global health With a population of 1.4 billion—nearly a fifth of the global total—and rapid societal transformations, ...
Case-cohort study designs represent a cost-effective and efficient strategy for analysing time-to-event data, particularly when the event of interest is rare. By selecting a random subcohort along ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback