Epithelial cells immortalized by human papillomaviruses have premalignant characteristics in organotypic culture.
Blanton RA, Perez-Reyes N, Merrick DT, McDougall JK. Epithelial cells immortalized by human papillomaviruses have premalignant characteristics in organotypic culture. Am J Pathol. 1991 Mar; 138(3):673-85.