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BOSTON -- Hip protectors designed to lessen the impact of falls for older adults do not appear to reduce the incidence of hip fractures, researchers here found.

WHITE RIVER JUNCTION, Vt. -- Pulmonary artery catheterization decreased by 65% for all medical admissions in the U.S., from 1993 to 2004, researchers here reported.

BOSTON -- Intense lipid-lowering may raise the threat of cancer as it reduces the risk of cardiovascular disease, according to results of a large meta-analysis.

STANFORD, Calif. -- Group therapy has no impact on survival in metastatic breast cancer, according to a randomized trial here that contradicted earlier findings of a significant advantage.

ROCKVILLE, Md. -- Based on botulism toxin tests at an Augusta, Ga., food processing plant, the FDA has expanded its warning about chili dog sauce to include 10 canned sauces and four pet food products.

VANCOUVER, British Columbia -- Systemic therapies for metastatic breast cancer introduced over the last decade do appear to have improved survival, according to the first population-based study to support this long-suspected benefit.

WASHINGTON -- The White House said today that pathology on five adenomatous polyps discovered during a colonoscopy performed on President Bush over the weekend were all benign.

HAMILTON, Ontario -- Patients are more likely to develop venous thromboembolism after hospital discharge than during their stay, and most get no prophylactic treatment.

NOTTINGHAM, England -- In many young children with intracranial ependymoma, primary chemotherapy can delay or avoid radiotherapy without compromising survival, according to investigators here.

BOSTON -- Obesity's link to multiple myeloma has received new corroboration from an analysis of data from two large studies of health care professionals.

NEW YORK -- Children who take methylphenidate (Ritalin) throughout childhood may undergo behavior-modifying brain changes that carry into adulthood, or so investigators found in rats.

NEW YORK -- In the year after New York's statewide ban on indoor smoking, saliva levels of cotinine, a marker of exposure to tobacco smoke, decreased by 47.4% among nonsmokers.

SUTTON, England -- Progression-free survival in chronic lymphocytic leukemia was extended significantly over monotherapy by combining fludarabine and cyclophosphamide, found an international study. But overall survival did not improve.

GATESHEAD, England -- Playing soothing music during a colposcopy or allowing the patient to view the procedure on a television monitor were effective anxiety-reducing interventions, according to a review of 11 clinical trials.

JACKSONVILLE, Fla. -- The proliferation of office-based point-of-care testing for glycosylated hemoglobin (HbA1c) makes home monitoring for diabetes patients seem a natural next step, but doubts have risen about its accuracy.

ROCKVILLE, Md. -- The FDA has warned consumers not to eat canned hot dog chili sauce marketed under several brand names following reports of four cases of botulism poisoning linked to the sauce.

ROTTERDAM -- Infants with acute lymphoblastic leukemia had improved event-free survival with a hybrid protocol that combined elements of acute myeloid leukemia therapy, investigators here found.

BOSTON -- Simvastatin (Zocor) may enrich the brain as well as help sustain the heart, according to researchers here.