A new study finds that doctors are working fewer hours even as the shortage of primary care physicians persists. The Associated Press/CBS News : "Average hours dropped from about 55 to 51 hours per week from 1996 to 2008, according to the analysis, appearing in Wednesday's Journal of the American Medical Association. That's the equivalent of losing 36,000 doctors in a decade, according to the researchers. And it raises policy questions amid a looming primary care doctor shortage and Congress considering an expansion of health insurance coverage that would mean more patients... 
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