Some researchers still take it as axiomatic that such growth-promoting changes to a small number of cancer genes are the initial event and root cause of every human cancer.

• 有些研究人员现在仍然将此说法视为铁律，相信一小部份癌症基因的突变所促进的细胞生长，是人类所有癌症的起始事件及根本原因。