P. Nordin, B. Göran Hansson, C. Hansson, I. Blohmè, O. Larkö, and K. Andersson, “Human Papilloma Virus in Skin, Mouth and Uterine Cervix in Female Renal Transplant Recipients With or Without a History of Cutaneous Squamous Cell Carcinoma”, Acta Derm Venereol, vol. 87, no. 3, pp. 219–222, Feb. 2007.