Pindborg, Jens J.; Daftary, Dinesh K.; Mehta, Fali S. (1977). "A follow-up study of sixty-one oral dysplastic precancerous lesions in Indian villagers". Oral Surgery, Oral Medicine, Oral Pathology. 43 (3): 383–90. doi:10.1016/0030-4220(77)90325-5. PMID265042.
Pindborg, Jens J.; Daftary, Dinesh K.; Mehta, Fali S. (1977). "A follow-up study of sixty-one oral dysplastic precancerous lesions in Indian villagers". Oral Surgery, Oral Medicine, Oral Pathology. 43 (3): 383–90. doi:10.1016/0030-4220(77)90325-5. PMID265042.