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ATLANTA -- Those years of pot smoking a generation ago may have created an unexpected legacy for baby boomers -- a lower risk of Alzheimer's disease.

CANBERRA, Australia -- Behavioral or cognitive behavioral therapy, with or without medication, is the top choice against obsessive-compulsive disorder in children and adolescents, according to a systematic Cochrane review.

NEW ORLEANS -- Bicycle crashes are more likely to be fatal when the rider has been drinking, is an adult male, has a collision with a car, or is riding on a high-speed roadway, reported researchers here.

ATLANTA -- Older patients are about as likely to be seen in the emergency room for adverse drug events as they are for automobile accidents, according to a CDC study.

NEW ORLEANS -- An emergency department in Albany, N.Y., is using ER visits as teaching moments to instruct patients how to program cell phones with I-C-E (in case of emergency), with contact names and numbers.

ATLANTA -- Brain regions of adults with autism fail to communicate efficiently with one another, according to high-resolution electroencephalography findings.

ROCKVILLE, Md. -- Women who survive childhood cancer are at a moderately elevated risk of later pregnancy problems, according to researchers here.

NEW ORLEANS -- A brightly colored, attractively packaged household cleaning product called Fabuloso has led to a rash of emergency department visits for accidental ingestion, toxicology researchers reported here.

NEW ORLEANS -- Today's cell phones don't disrupt emergency department telemetry, and patients and visitors should be allowed to use them, contended researchers here.

BOSTON -- Compared with the cardiovascular benefits of finfish and shellfish, fears of mercury and polychlorinated biphenyls (PCBs) should be considered dead in the water, according to a review of the evidence.

YOKOHAMA, Japan -- The antioxidant enzyme heme oxygenase-1 may be a potential biomarker or even treatment for silicosis, according to researchers here.

UTRECHT, The Netherlands -- Pre-op breathing exercises and respiratory muscle training help avoid pulmonary complications after a coronary artery bypass graft, researchers here reported.

LANSING, Mich. -- Women older than 70, who represent one in three breast cancer patients, are "underdiagnosed, understaged, and undertreated" compared with younger women, researchers here asserted.

NEW ORLEANS -- CT scans for patients with suspected acute appendicitis add no diagnostic value and may be associated with worse outcomes, researchers reported here.

ROCKVILLE, Md. -- Aricept (donepezil), a cholinesterase inhibitor on the market for mild to moderate Alzheimer's disease, today became the first of its class to win FDA approval for severe disease.

TORONTO -- Necrotizing fasciitis may be caused by methicillin-resistant Staphylococcus aureus, especially in areas where community-acquired MRSA is prevalent, researchers reported here.

DALLAS -- CT imaging of coronary calcification by electron beam or multidetector devices is appropriate for patients at an intermediate risk, according to an American Heart Association statement. It represents an about face for the organization.

GAINESVILLE, Fla. -- Decaffeinated java at specialty coffee shops, such as Starbucks, and other food outlets may not be free of caffeine, reported researchers here.