5. Major surgical procedure (including craniotomy and open brain biopsy) or significant traumatic injury within 14 days prior to registration or those patients who receive a non-CNS minor surgical procedures (e.g. core biopsy or fine needle aspiration) within 3 days prior to registration. There is no waiting period for central line placement. There is a 7-day window for recovery prior to registration for patients who underwent stereotactic biopsy of the brain.