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癌是怎样发生的?过去的半个世纪,许多医生、生物学家和其他专业人员均在思索这个问题。当然,对此假说多于认识。癌不止一种,它的起因也不是单一的。不管怎样,自然杂志的读者,将本刊几周前发表的两篇具有价值的专业论文所列的致癌的不同观点予以比较,对这个问题就会留下印象。三周前(Natuve 1981年289卷,127～130页)Epstein和Swartz在“癌存活方式的谬论”这一标题下,试图驳斥Peto较早所发表的论点(Nature284卷,1980年),而Peto本人又曾批驳Epstein“关于癌的见解”一
How does cancer happen? For the past half-century many physicians, biologists, and other professionals are pondering this issue. Of course, there is more to this hypothesis. More than one cancer, its cause is not single. In any event, readers of Nature magazine impressed on this issue by comparing the different perspectives of carcinogenesis listed in two valuable dissertations published several weeks ago by our magazine. Three weeks ago (Natuve 1981, Volume 289, pp. 127-130) Epstein and Swartz attempted to disprove the earlier Peto statement (Nature 284, 1980) under the heading “Fallacies of Cancer Survival,” while Peto I once again criticized Epstein's “Opinion on Cancer.”