For many patients, getting ready to have surgery means getting their blood drawn, their heart rhythm checked, or having other ...

The United States is seeing a second peak in flu cases this season. After doctor’s office visits for flu dipped early this ...

Assays for hepatitis B surface antigen (HBsAg) are the most frequently used tests to detect HBV infection. Vaccination for HBV can produce transiently detectable levels of HBsAg in patients.