1. Pulmonary nodules: solitary and multiple;Lillington;Clin Chest Med,1982
2. The solitary pulmonary nodule;Fraser,1989
3. Solitary circumscribed lesions of the lung;Hood;JAMA,1953
4. Outcome of solitary pulmonary nodules discovered in an x-ray screening program;Comstock;New Engl J Med,1956
5. Solitary pulmonary nodules: CT assessment;Siegelman;Radiology,1986