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Daniel W. Zahn, M.D.; John H. Fountain, M.D.; Cedric Northrop, M.D.
JAMA. 1956;160(4):317-318. doi:10.1001/jama.1956.02960390067023.
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To the Editor:—  In an editorial in The Journal, April 23, 1955, page 1499, Garland indicated that the yield of new active cases of tuberculosis resulting from chest x-ray surveys was small. He raised the question whether it would not be timely and appropriate to reevaluate the usefulness of this measure as a case-finding tool. During the past two years an intensive chest x-ray survey program has been pursued in Seattle and King County, Washington. During 1954, two mobile units took 80,431 miniature films. In addition, a stationary unit was placed in the city jail for the purpose of obtaining a film on every new inmate. During 1954, 10,970 films were obtained from this group. Also health card x-rays for all food handlers are mandatory, and the number of films taken during the past year was 15,459. From the mobile units that took over 80,000 films, 76 active cases of


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