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 ...

As biomarker studies employ increasingly complex and expensive genomics and other correlative methods, it is increasingly important to rigorously design these studies and analyze the downstream ...

Research is an organized way of collecting information to answer questions or test ideas that will benefit society. Research is done for many different reasons: Find new treatments for illness or ...