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An 82-year-old man presents with shoulder pain resulting from a fall the day before. He has had intermittent episodes of light-headedness, chest pain, and "flutterings in the chest" over the past week--including one this morning.

Three case studies of patients with fever and rash challenge you to distinguish infectious from other causes and serious from non-threatening.

TORONTO -- If all women of child-bearing age took a daily dose of folic-acid fortified multivitamins, they would sharply reduce the risk of several major birth defects, researchers here concluded.

BOSTON -- Concerns that immune-modifying anti-arthritis drugs could increase the risk of malignancies may be unfounded, according to a review of U.S. and Canadian databases.

SENDAI, Japan -- Clues to the cause of sometimes fatal crescentic glomerulonephritis, and a possible therapeutic target, may have been uncovered by a mutation in a strain of experimental mice.

BETHESDA, Md. -- In two men with advanced melanoma, genetically altered T-cells wiped out their cancer, leaving them disease-free 18 months after treatment, researchers here said, but the therapy did not work in 15 other patients.

BOSTON -- Celebrex (celecoxib) can prevent sporadic colorectal adenomas, as well as reduce post-polypectomy recurrences, but these pluses may be outweighed by cardiovascular minuses.

WASHINGTON -- Plates groaning with food, a society that discourages walking, and long hours of working and commuting are all conspiring to make Americans obese, according to a report released by a non-profit group.

ROCHESTER, Minn. -- Symptomatic delay of benign prostatic hyperplasia may be a serendipitous benefit of the daily use of a nonsteroidal anti-inflammatory drug, according to investigators here.

BALTIMORE -- A genome-wide analysis has found 51 genetic regions that appear to be linked to alcoholism, including genes involved in cell signaling, gene regulation, and development, among other things.

DURHAM, N.C. -- Functional magnetic resonance imaging (fMRI) may help surgeons aggressively walk the fine line between how much brain tumor to resect without excessive damage to a patient's quality of life, researchers said.

This special report from Zach Wise, a MedPageToday contributing photographer, presents the sights and sounds of New Orleans medicine a year after Hurricane Katrina.

NEW ORLEANS -- A year after Katrina's winds and surging waters destroyed much of this city, New Orleans' health care system is still at sea.

CORTE MADERA, Calif. -- If alcoholics quit drinking early enough and stay sober long enough, the recovery of their mental functions will be nearly complete, a study here suggested.

RICHMOND, Va. -- A single genetic variation may help explain why African American women have a higher risk of delivering premies because of early rupture of the amniotic membrane.

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MONTREAL -- Women who take NSAIDs during the first trimester have a greater risk of having babies with congenital anomalies, particularly cardiac septal defects, researchers here reported.

WORCESTER, Mass. -- Scientists reported today a way to extract an embryonic stem cell from a human embryo without damaging it, a finding that may ease the rancorous debate over such research.