Overly broad definitions, a lack of appropriate, or any, comparison groups, among other things, in studies looking at the incidence, prevalence, and control of the condition-;epidemiology-;have distorted the risks, say the researchers.
Opinion | Discerning the Truth About the Medicare Advantage Controversy
David Nash is the Founding Dean Emeritus and Dr. Raymond C. and Doris N. Grandon Professor of Health Policy at the Jefferson College of Population