1.Varian medical systems Varian medical systems, inc., of palo alto, california is the world's leading manufacturer of integrated cancer therapy systems, which are treating thousands of patients per day. the company is also a premier supplier of x- ray tubes and flat-panel digita... http://www.varian.com/ - 28.07.2006 à 19:00
2.Www.cancer.gov - national cancer institute Accurate, up-to-date, comprehensive cancer information from the u.s. government's principal agency for cancer research.... http://www.cancer.gov/ - 28.07.2006 à 18:40
