1. Cancer of the anterior mediastinum probably originating in the thymus gland. Trans Pathol Soc London 1868; 19: 53. Unilateral superior vena caval syndroMe;0, Cayley
2. Lesions in the superior mediastinum which interfere with venous circulation;Hinshaw, H.C.; Rutledge, D.I.;J Lab Clin Med,1942
3. Superior vena cava and innominatc veins;Roberts, D.J.; Dottler, D.T.; Steinberg, I.;AJR,1951