作者: RAYMOND D. PRUITT
DOI: 10.1001/JAMA.1945.02860290001001
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摘要: The diagnosis of coronary sclerosis is usually dependent on the clinical history pain in chest or arm, invoked by effort and relieved rest. In certain cases an apparent constant correlation exists between occurrence amount increased demand heart for work, but many other not related consistently to cause. Because vagaries symptom complex angina pectoris, may be difficult establish. Consequently, any objective method confirming excluding a would immediate interest clinician, particularly if test was applicable from standpoint time material, harmless patient could definitely interpreted. A number observers have noted reaction so-called normal persons who disease