CogniQ There are two factors judged out to categories the brain tumors one is depends on growth rate of cell and other is depends on distortion of cell. In initial phase tumors grow at primary layer of brain, which on coming penetrate inside the other parts of brain. In secondary phase the tumor cells increases their no. and affected the other layers of brain, this is critical time when the patient requires radio surgery treatment. When a person undergoes the treatment of radio surgery for a tumor doctors most of the time uses the two techniques to expose the unexpected growth of cell. The two methods are one is linear accelerators and other is a stereotactic frame. http://www.supplements4help.com/cogniq/