1. Mediastinal cysts;Abell;A.M.A. Arch. Pathol.,1956
2. Disorders of the thymus gland and thymus transplantation in man;Ambrus,1973
3. Immunologic competence in adults following thymic irradiation in infancy;Amman;Radiology,1977
4. Developmental Anatomy;Arey,1956
5. Persistent cervical thymus gland; thymectomy;Arnheim;Surgery,1950