epidemiology

When I was learning how to do word problems in elementary school, we were taught to ask ourselves a few questions after arriving at an answer.

Every student in America should be required to take a class called, "What Do We Know, and How Do We Know It?" Perhaps if we learned from an early age how we know the things we claim to know, fewer Americans would fall for ridiculous conspiracy the

A large, long-term study of the value of screening mammography for saving lives of