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SANTA MONICA, Calif. - Better scrutiny of lymph nodes in colorectal cancer patients could help to more accurately identify those who need adjuvant chemotherapy and those who don't.

MIAMI - When African-American and Hispanic blacks are diagnosed with malignant melanoma, it's more often at an advanced stage than when it is diagnosed in whites, researchers here have found.

SEATTLE - In a pair of chest-to-chest trials, an automated compression device came up the winner in one but traditional manual CPR did better in the other.

CHICAGO - Is is not proper for clinicians to use placebo therapy in everyday practice without telling patients first, according to the American Medical Association's ethics council.

ROCKVILLE, Md. ? The FDA said today that 580 automatic external defibrillators, a model known as AED20, are being voluntarily recalled by MRL, a division of Welch Allyn, because of a malfunction that could result in failure to resuscitate patients.

STANFORD, Calif. ? Herbal remedies are fast approaching hormone therapy as the most-favored treatment by women suffering from menopause symptoms, researchers here said.

CHICAGO - The American Medical Associations wants the FDA to make industry hold off on direct-to-consumer ads for new agents or implantable devices until physicians are brought up to speed.

PHOENIX, Ariz. - A simple but reliable way to distinguish psychogenic nonepileptic seizures from epilepsy is to look at the patient's eyes, researchers here reported.

ROCHESTER, Minn. ? Men exposed to pesticides on the farm or elsewhere have more than double the risk of developing Parkinson's disease as do men who avoid pesticide exposure or women, according to Mayo researchers.

BOSTON ? High levels of retinol binding protein 4 (RBP4), which transports vitamin A as its main job, may be an early warning sign for insulin resistance and type 2 diabetes, according to researchers here.

CHICAGO - The American Medical Association has crafted a radical proposed solution to the problem of Americans with no health insurance coverage.

BOSTON ? Mutations in a recessive gene that causes early-onset Parkinson's disease also occur in about 12% of those whose families have a familial form of the disease, researchers here reported.

HOUSTON - Unexplained vision loss may be related to vitamin A deficiency in patients with a history of intestinal or bariatric surgery, no matter how long ago, according to ophthalmologists here.

ANN ARBOR, Mich. - A last-resort surgical treatment for ulcerative colitis triples the risk of infertility for female patients, according to researchers here.

WASHINGTON - Lorcaserin, an investigational drug for the treatment of obesity, was successful at producing weight loss ranging between four and 7.9 pounds (1.8 to 3.6 kg) in a 12-week study, reported investigators here.

NEW YORK ? Prozac (fluoxetine) does not prevent relapse in anorexia nervosa, according to researchers to two cities.

PITTSBURGH - After seven hours of surgery to repair facial injuries, Pittsburgh Steelers quarterback Ben Roethlisberger was in stable but serious condition in Mercy Hospital here today. No other serious injuries were reported from his motorcycle accident yesterday.

CHICAGO - After more than 10 years of a steadily dwindling membership in the American Medical Association, more doctors are once again joining.