In recent years direct ownership of physician practices by hospitals and health systems (that is, vertical integration) has become a prominent feature of the US health care system. One unexplored ...

Despite the boom in genetic tests available in US laboratories, oversight remains patchy. A survey of laboratory directors suggests that mandatory proficiency testing would result in fewer errors.

At the end of January, Medicare users are going to face a major shakeup. Starting February 1, Americans on the ...

When you bring a measurement instrument to a calibration lab, you assume that your instrument will come back within expected tolerances. But, how do you know? That's where laboratory proficiency tests ...

Certain health conditions, including liver disease and hepatitis, cause the immune system to produce anti-smooth muscle antibodies. Doctors use a blood test to check for these antibodies. Anti-smooth ...