1. Verrucous carcinoma of the oral cavity;Ackerman;Surgery,1948
2. “Field cancerization” in oral stratified squamous epithelium, clinical implications of multicentric origin;Slaughter;Cancer,1953
3. The Surgical Operation on President Cleveland in 1893;Keen,1917
4. New historical information on the Cleveland operations;Morreels;Surgery,1967
5. The final diagnosis of President Cleveland’s lesion;Brooks;Transactions & Studies of the College of Physicians of Philadelphia,1980