Medicine: X-Ray for Heart Attack

In 1927 a young Austrian heart specialist named William Raab gave himself a stiff injection of adrenalin. In a few minutes he felt an agonizing stab in his shoulder, a choking sensation in his throat, lightning pains down his left arm, a drenching sweat. Dr. Raab's agony was really a triumph. For he had produced, for the first time, symptoms of the dread heart disease, angina pectoris.

Dr. Raab recovered from his experiment. The symptoms he had experienced gave him added evidence for a new theory of angina pectoris: that the bad actors in...

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