/news/b/articles/archive/2014/09/08/st-petersburg-scientist-tumors-play-a-positive-role-in-evolution.aspxIt’s 1975, and at a Soviet research institute in Leningrad, Andrei Kozlov is onto something. The biomedical scientist has just defended a PhD thesis, impenetrable to the uninitiated. Something about how genes are expressed in tumors and normal7.x Production