BERN, Switzerland, April 17 (UPI) -- A European meta-analysis found that chondroitin, a dietary supplement used to treat osteoarthritis, is ineffective but not harmful.

NEW HAVEN, Conn., Jan. 17 (UPI) -- Narcotic drugs are often prescribed for short-term relief of chronic back pain, but their long-term use may lead to drug abuse, says a U.S. study.

NEW YORK, Aug. 17 (UPI) -- U.S. patients with heart failure whose care was directed by nurse managers had fewer hospitalizations than patients who had usual care, a study finds.

LOS ANGELES, July 20 (UPI) -- Diabetes disease-management programs lead to better examination and testing but not to better control of blood pressure, cholesterol or blood-sugar levels.

ITHACA, N.Y., June 19 (UPI) -- Three asthma inhalers containing the drugs salmeterol or formoterol may be linked to U.S. asthma-related deaths, say U.S. researchers.

CHICAGO, June 8 (UPI) -- The first study assessing benefits of naps for U.S. medical residents during extended nighttime shifts finds such sleep significantly reduces fatigue.

LOS ANGELES, May 2 (UPI) -- A Los Angeles study finds that patient satisfaction appears to depend more on doctors' communication skills than the quality of care.

BOSTON, April 18 (UPI) -- U.S. researchers have issued clinical guidelines to use before surgery in assessing a patient's risk of postoperative pulmonary complications.

NEW YORK, April 18 (UPI) -- New York City researchers have found that a telephone could increase cancer screening, especially among minority groups.