1990年出版的美国国立癌症研究所年报显示的癌症统计资料表明,癌症依旧是危胁大众健康的一大问题。 1973～1987年间癌症发生率变化:皮肤黑素瘤+83.3％,非何杰金氏病+50.9％,前列腺癌+45.9％,睾丸癌+39％,肺及支气管癌+31.5％,肾和肾盂癌+27％,乳腺癌+23.4％,脑及神经系肿瘤+23％,肝肿瘤+19.6％,甲状腺癌+14.6％,所有部位肿瘤(平均)+14.6％,膀胱癌+12.3％,食管癌+12.3％, The cancer statistics shown in the annual report of the National Cancer Institute published in 1990 showed that cancer is still a major problem that threatens public health. Changes in cancer incidence from 1973 to 1987: skin melanoma +83.3%, non-Hodgkin’s disease +50.9%, prostate cancer +45.9%, testicular cancer +39%, lung and bronchial cancer +31.5%, kidney and renal pelvis Cancer +27%, breast cancer +23.4%, brain and neurological tumors +23%, liver tumors +19.6%, thyroid cancer +14.6%, tumors in all sites (average) +14.6%, bladder cancer +12.3%, esophageal cancer +12.3%