1. Haynes HA, Mead KW, Goldwyn RM: Cancers of the skin. In: Devita Jr VT, Helaman S, Rosenberg SA (eds), Cancer: Principles and Practice of Oncology, vol 2. Philadelphia: Lippincott, pp 1343–1369, 1985.
2. Andrade R, Gumport SL, Popkin G, Reese R: Cancer of the skin, vol 2. Philadelphia: WB Saunders, pp 899–949, 1976.
3. Whitaker DC: Clinical evaluation of tumors of the skin. In: Thawley SE, Panje WR (eds), Comprehensive Management of Head and Neck Tumors, vol 2. Philadelphia: WB Saunders, pp 1158–1172, 1987.
4. Silverberg E, Lubera JA: Cancer statistics, 1988. Ca 38:5–22, 1988.
5. Panje WR, Ceilley RI: The influence of embryology of the mid—face on the spread of epithelial malignancies. Laryngoscope 89:1914–1920, 1979.