:


Beattie EJ: Seven warning signs of cancer: A fuller explanation for patients. Prim Care Cancer September: 45, 1989

Conn RB (ed.): Current Diagnosis, 8th ed. Philadelphia, Saunders, 1991

Devita VT et al. (eds): Cancer: Principles and Practice of Oncology, 5th ed. Philadelphia, Lippincott, 1997

Parker SL et al: Cancer statistics, 1996. CA Cancer J Clin 46:5, 1996

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