Clinical question: Is maternal blood testing late in the first trimester accurate to determine fetal sex?

Clinical question: What is the relationship between body mass index (BMI) and mortality in the elderly?

Clinical question What are the clinical features of the H1N1 pandemic influenza?

Clinical question Are adults with acute-onset visual floaters and flashes at risk for retinal detachment?

Clinical question: In patients with diabetes but no cardiovascular disease, does daily aspirin treatment reduce the risk of cardiovascular events?

Clinical question: How often do obese children with acanthosis nigricans (AN) have diabetes or other impairments of glucose control?

Clinical question: Does long-term statin therapy reduce the risk of gallstone disease?

Clinical question: Are lifestyle changes (diet and exercise) more effective than metformin in delaying the onset of diabetes in patients with impaired glucose tolerance (IGT)?

Clinical question: When and how should women be screened for breast cancer?

Clinical question: In children stabilized in emergency departments (EDs) for acute asthma exacerbations, does short-term maintenance with steroids result in better outcomes than maintenance with montelukast?