F. Drago, E. Raineri, and A. Rebora, “Non-AIDS-Related Kaposi Sarcoma Tissues Do Not Contain DNA Sequences of HHV-6;HHV-7;Epstein-Barr Virus;Cytomegalovirus and HSV”., Acta Derm Venereol, vol. 78, no. 6, p. 485, Dec. 1998.