1. . : Tumors of the Thymus Gland; Atlas of Tumor Pathology, sect. 5, fasc. 19. Washington, D.C. Armed Forces Institute of Pathology. 1955; p. 65.
2. Cushing's syndrome and bronchogenic carcinoma
3. . : Tumors of the Lower Respiratory Tract; Atlas of Tumor Pathology, sect. 5, fasc. 17. Washington, D.C. Armed Forces Institute of Pathology. 1952; pp. 38, 39.