2Dutriewi. cz S, Witeska A. Human papillomavirus(HPV) infection in prema gnarncy and carcinoma of the penis. Med Pol, 1994, 26(4): 139 - 141
3Gerber C, Von Hochstetter AR, Schuler G, et al, Penile carcinoma in a young chimney sweep case, 200 years following the description of the first occupational disease. Schweiz Med Wochenshr. 1995, 125 (24): 12011 - 1203