1. Prognosis of Pseudoadenomatous Basal-Cell Carcinoma; Cylindroma, Adenocvstie Carcinoma;Smout;A. M. A. Arch. Path.,1961
2. Cylindromas of the Trachea;Clark;Proc. Staff Meet. Mayo Clin.,1953
3. A Continuing Clinical Survey of Adenomas of the Trachea and Bronchus in a General Hospital;Wilkins;J. Thoracic & Cardiovas. Surg.,1963
4. Tumors of the Trachea;Tinney;Arch. Otolaryngol.,1945
5. Primary Adenocystic Carcinoma or Cylindroma of the Trachea;Guttman;Ann. Otol.,1936