To the Editor:
The authors found an error in our published article.
Sung W, Park JM , Choi CH, Ha SW, Ye SJ. The effect of photon energy on intensity-modulated radiation therapy (IMRT) plans for prostate cancer. Radiat Oncol J 2012;30:27-35. http://dx.doi.org/10.3857/roj.2012.30.1.27
The funding acknowledgment in this article was omitted as published. Additional acknowledgment is as follows:
This work was supported by Research Settlement Fund for the new faculty of Seoul National University.
The authors apologize for any inconvenience this mistake may have caused.