1. Primary Malignant Lymphoma of the Lung;Dahlgren;Acta Radiol.,1969
2. Primary Chondrosarcoma of the Tracheobronchial Tree;Daniels;Arch. Path.,1967
3. Plasma-Cell Tumors of the Mouth and Upper Air Passages;Ewing;Cancer,1952
4. Leiomyosarcoma of the Bronchus: Report of a Case;Gale;Dis. Chest,1967
5. Intrapulmonary Malignant Teratoma;Gautam;Amer. Rev. Resp. Dis.,1969