1. “Visualization of the Bronchial Tree with Water Soluble Contrast Medium,”;Fischer;Schweiz. Med. Wochensch.,1948
2. “Evaluation of Ioduron B in Bronchography. II. A Preliminary Study in Man,”;Cohen;Dis. of Chest,1952
3. Shefts, L. M., Civilian Thoracic Surgical Consultant, Veterans Administration Hospital, Legion Branch, Kerrville, Texas: “Personal Communication.”