Cardiology: Cutting Cholesterol

The National Heart Institute is barely halfway through an ambitious project to evaluate four drugs for possible use in preventing heart attacks by lowering the level of cholesterol in the blood. Last week a preliminary—premature, said some doctors—report raised hope that one of the drugs may already have prevented some attacks.

Dr. Louis R. Krasno told a Senate subcommittee that in research for United Air Lines in San Francisco he had studied 1,400 ground personnel for 31 years. All were men aged 41 to 60; half of them had taken four daily...

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