Correction to Kasibhatla et al. How Much Radiation Is the Chemotherapy Worth in Advanced Head and Neck Cancer? (Int J Radiat Oncol Biol Phys 2007;68:1491-1495)

The equivalent number of 2-Gy fractions of concomitant chemotherapy as used in the 16 listed schedules is 3.6 (95% confidence interval, 2.7-4.1), not 5 as claimed by Kasibhatla et al. The difference is statistically significant (p < 0.001).