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MELBOURNE, Australia -- Physical activity strengthens cartilage in the knee and protects older patients against osteoarthritis, researchers here found.

ROCKVILLE, Md. -- The FDA today ordered makers of more than 200 unapproved hydrocodone-containing cough syrups to remove them from the market.

SALT LAKE CITY -- Forecasts that physician-assisted suicide and euthanasia would be practiced disproportionately on vulnerable groups, such as the poor, the elderly, and women, did not prove accurate, according to researchers here.

BILBAO, Spain -- For calcific tendinitis of the shoulder, ultrasound-guided percutaneous needle aspiration and lavage can improve range of motion and provide both short- and long-term relief of pain, reported investigators here.

MADISON, Wis. -- Symptoms of autism, including maladaptive behaviors and impaired social interactions, appear to lessen over time in a significant percentage of patients studied over nearly five years.

ANN ARBOR, Mich. -- The reason that opioids seem to fizzle for fibromyalgia may be because of reduced receptor activity in regions of the brain that process and dampen pain signals, researchers here found.

ELIZABETH, N.J. -- Nearly two dozen illnesses from frozen hamburgers apparently tainted with Escherichia coli O157:H7 have prompted a meat company to recall more than 300,000 pounds of beef.

TORONTO -- Stopping heavy drinking can significantly reduce the risk of esophageal and head-and-neck cancers, primarily squamous-cell carcinomas, researchers here said.

VALENCIA, Spain -- Capsule endoscopy diagnosed more patients with Crohn's recurrence after surgery than did colonoscopy and was better tolerated, researchers in Spain reported.

ROCHESTER, NY-Breast cancer patients with a history of traumatic or stressful life events have a significantly increased risk of recurrent disease, investigators here have found.

It doesn't seem to matter whether the alcohol comes in the form of beer, wine, or spirits. . . when it comes to breast cancer, women who consume 3 or more drinks a day are at significantly greater risk for this disease.

BOSTON -- When a patient dies during a "code call" in the hospital, the residents, nurses, and technicians who responded to the emergency might stop for just a moment and pay respects to the life that was lost, suggested a Harvard internist.

ATLANTA -- The breast cancer mortality rate in the U.S. has been edging down by 2% a year since 1990 and the incidence of new cases has declined by 3.5% per year from 2001 to 2004, according to the American Cancer Society/

BARCELONA, Spain -- The addition of trastuzumab (Herceptin) to chemotherapy before surgery appears to allow more women with HER-2 positive inflammatory breast cancer to achieve a complete disease response than does chemotherapy alone.

BARCELONA -- Monitoring circulating tumor cells in women with breast cancer may be help guide treatment and refine prognoses, according to preliminary data from German investigators.

BARCELONA, Spain -- An investigational drug that blocks key cancer growth messages appears to give patients with metastatic hormone resistant prostate cancer an extra six months' survival.

OAKLAND, Calif. -- An immunochemistry test for fecal occult blood is significantly more accurate in detecting left-sided colorectal cancer than conventional testing, investigators here reported.

DENVER-A higher intake of omega-3 fatty acids found in fish was linked to a lower risk of pancreatic islet autoimmunity in children at genetic risk for type 1 diabetes, according to a preliminary study.