The August 20, 2018, article by Klopp et al entitled “Patient-Reported Toxicity During Pelvic Intensity-Modulated Radiation Therapy: NRG Oncology–RTOG 1203” (J Clin Oncol 10.1200/JCO.2017.77.4273) was published with an error.
In the fourth sentence of the Methods section, the NCT number contained errors. The NCT number was given as:
It should have read as:
NCT01672892
This has been corrected as of February 18, 2019. The authors apologize for the error.