Correspondence to Professor Chyke A Doubeni, Department of Family Medicine and Community Health, Perelman School of Medicine, University of Pennsylvania, Gates 2, 3400 Spruce Street, Philadelphia PA ...

Within each content area, there are one or more tutorials. Each tutorial consists of lessons. Each lesson should be a page detailing the concept being taught, along with sample code. Lesson and page ...

Background Overuse of diagnostic testing substantially contributes to healthcare expenses and potentially exposes patients to unnecessary harm. Our objective was to systematically identify and examine ...