1. Oral surgery—oral pathology conference no. 17, Walter Reed Army Medical Center. Periapical lesions—types, incidence, and clinical features;Bhaskar;Oral Surg,1966
2. Reliability of oral exfoliative cytology for detection of oral cancer;Sandler;JADA,1964
3. Smear techniques in the diagnosis of intra-oral carcinoma;Tiecke;Dent Progress,1961