Medicine: Man or Dog?

Shortly before Election Day, surgeons at the Johns Hopkins Hospital in Baltimore performed their thousandth "blue baby" operation. The technique, which has saved many more thousands of lives elsewhere, was developed at Johns Hopkins by two famed doctors, Alfred Blalock and Helen Taussig, in a long course of experimenting on dogs. The dogs got the same care, the same anesthesia, as would a human patient. Not all the dogs died—if they had, the experiment would have been a failure. For example, Anna, now a laboratory pet, is as well today as 3^-year-old Gene...

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