1. Oral white lesions with special reference to precancerous and tobacco- related lesions: Conclusions of an international symposium held in Uppsala, Sweden, May 18-21 1994.International Collaborative Group on Oral White Lesions;Axéll;J Oral Pathol Med,1996
2. International seminar on oral leucoplakia and associated lesions related to tobacco habits;Axell;Community Dent Oral Epidemiol,1984
3. Leukoplakia, lichen planus, and other oral keratoses in 23,616 white Americans over the age of 35 years;Bouquot;Oral Surg Oral Med Oral Pathol,1986
4. Occurrence of leukoplakia and some other oral white lesions among 20,333 adult Swedish people;Axéll;Community Dent Oral Epidemiol,1987
5. Epidemiological study of oral leukoplakia based on mass screening for oral mucosal diseases in a selected Japanese population;Ikeda;Community Dent Oral Epidemiol,1991