Patients were divided into @ groups based on tumor Biological Effective Dose at @ Gy ( BED @ ) : those receiving standard dose ( SD ; n = @ ) , consisting of @Gy BED @ @ Gy ( eg @-@ Gy/@ -@ fractions -LSB- fr -RSB- ) , and those receiving intermediate dose ( ID ; n = @ ) , consisting of @ Gy < BED @ < @ Gy ( eg > @ Gy/@ fr and < @ Gy/@ fr ) , with lower-dose patients ( n = @ ) excluded from consideration .