The volumes of normal tissue receiving high (≥80% of prescription dose or ≥40 Gy) or intermediate (80%>dose≥50% of the prescription dose or 40Gy>dose≥25Gy) dose were significantly smaller with CK vs. IMRT plans (p less then 0.0001 for all comparisons). With a median follow-up of 3.7 (range 0.1-9.0) years, 3-year LC was 92% for all patients. Eight failures occurred one...