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JAMA. 1948;137(14):1228. doi:10.1001/jama.1948.02890480048012.
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The compositors returned to work on Monday, June 28. This issue of The Journal has been prepared in part by the use of Van-Typer machines.

EXPERIMENTAL NECROTIZING ARTERITIS  Summarizing several years of experimental work, Holman1 and his associates of the Department of Pathology, University of North Carolina, concluded that degenerative lesions affecting principally the aorta, pulmonary artery, auricular endocardium and coronary arteries may be produced with regularity in young dogs by controlling two factors: (a) diet and (b) renal efficiency. Both factors are necessary, either one in itself being ineffective.Two diets were used in these experiments. The first or "standard diet" consisted of 32 parts of calves' liver, 25 parts of cane sugar, 25 parts of corn starch, 12 parts of butter and 6 parts of commercial cod liver oil plus enough tomato juice to make a paste. Each gram of this diet contained 3 calories. The diet


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