Prevention is the strongest weapon we have and can be prevented only if you know how. At the same time, then, is information which, fortunately, with regard to tumors is constantly updated and disseminated in a capillary. But who can say they are too informed? For this starting tomorrow until Monday, March 21 major Italian cities will host the National Week for the Prevention of Cancer, one of the highlights of the Italian League for the Fight against Cancer (LILT), established by decree of the President of the Council of Ministers.