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Analysis of x-ray heart areas of 30 patients with endemic fluorosis

I. Targets and methods Based on diagnosis standards formulated at the 1981 Shijiazhuang National Prevention of Endemic Fluorosis Meeting, 30 patients were chosen, 15 men and 15 women with an average age of 45, average height of 1.63 meters, and average weight of 54 kilograms, and all with clinical diagnoses of early sclerosis. Upon a clinical comprehensive physical examination and biochemical examination, no cardiovascular diseases were found. Conditions for taking the frontal heart X-rays: fast