H. Louis McCombs

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Concentrations of the alpha-particle-emitting radioactive element polonium was measured in various pulmonary tissues of smokers and nonsmokers in order to determine 1) whether this radiation exposure is associated with the development of bronchial cancer in smokers; and 2) how smoke is absorbed and excreted in human lungs. Lung specimens from 25 current(More)
gram and inactivity were compared in two groups of dogs in which acute myocardial infarction was produced by coronary artery ligation. The exercised group of animals tolerated the training program well, and neither arrhythmia nor sudden death oocurred. At the end of the training program the exercised group of animals displayed the characteristic changes of(More)