Probable nonpapillomavirus etiology of squamous cell carcinoma of the vulva in older women: a clinicopathologic study using in situ hybridization and polymerase chain reaction.
Toki T, Kurman RJ, Park JS, Kessis T, Daniel RW, Shah KV.
Int J Gynecol Pathol. 1991;10(2):107-25. doi: 10.1097/00004347-199104000-00001.