Have you read any good books lately? http://www.pressandshear.com/stmap_100uqo2h.html?hytrin.sildalis.inderal.viagra diclofenac und ibuprofen zusammen einnehmen A laser is fired at the tissue. However, the beam of light's properties are changed depending on what it hits. The differing chemistry of a cancerous cell and normal brain tissue mean the laser can show a surgeon the outside edge of a tumour.
