In the article cited above, a discrepancy between the data in Figure 3 and Table 2 has been discovered.
The proportions of Stage data for rectal cancer in Figure 3 are incorrect; the correct data on Stage incidence in rectal cancer is given in Table 2. As a result of this change, the overall radiotherapy utilization rate for rectal cancer is 65%, not 61%.
Results and conclusions of this article remain unchanged.
The authors regret this error.