https://blogs.mercola.com:443/sites/vitalvotes/archive/2003/07/26/How-Well-Tested-Are-New-Cancer-Drugs.aspxContrary to popular belief, drug companies are not required to prove that their cancer drugs prolong survival. Until the mid-1980s, all cancer drugs were approved solely on the basis of what researchers call the "tumor response." In other words, a drugenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)