1. Volume 32, Issue 1, Pages 27-38 (July 1957)
Tuberculosis in Hospital Employees as Affected by an Admission Chest X-ray Screening Program 
GEORGE JACOBSON, M.D., DONALD D. HOYT, M.D., EMIL BOGEN, M.D., F.C.C.P. 
Diseases of the Chest 
Volume 32, Issue 1, Pages (July 1957)
DOI: /chest
Copyright © 1957 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Diseases of the Chest  , 27-38DOI: ( /chest )
Copyright © 1957 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Diseases of the Chest  , 27-38DOI: ( /chest )
Copyright © 1957 The American College of Chest Physicians Terms and Conditions