1. Cook GG, Moosa B. 1985. Hepatocellular carcinoma: one of the world’s most common malignancies. Am J Med 233:705–708.
2. Dunham LJ, Bailer JC III. 1968. World maps of cancer mortality rates and frequency ratios. J Natl Cancer Inst 41:155–203.
3. Silverberg E. 1968. Cancer statistics 1986. CA Cancer J Clin 36:9–25.
4. Chlebowski RT, Tong M, Weissman J, Block JB, Ramming KP, Weiner JM, Bateman JR, Chlebowski JS. 1984. Hepatocellular carcinoma. Diagnostic and prognostic features in North American patients. Cancer 53:2701–2706.
5. Kew MC. 1994. Hepatitis viruses and hepatocellular carcinoma. S Afr Med J 84:550.