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The authors have advised that the explanation for the # symbol is missing in Figure 2E key on page 1392. There are also missing markers for Radiotherapy to the metastatic foci and Radiofrequency ablation in the figure. The correct figure is below.

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Background: Previous study revealed that prophylactic percutaneous endoscopic gastrostomy (PEG) maintain nutritional status of patients with locally advanced nasopharyngeal carcinoma (LA-NPC). We aimed to further investigate the effect of PEG on the long-term quality of life of patients with LA-NPC. Methods: Patients with LA-NPC were selected and divided into PEG and non-PEG groups. The QLQ-C30 scores, incidence of adverse effects, weight and xerostomia recovery were compared between the two groups.Results: No statistically significant difference in the scores of each QLQ-C30 scales between the two groups (P>0.05). The incidence of xerostomia was higher in the PEG group than in the non-PEG group (P=0.044), but no significant difference in the incidence of the remaining adverse effects as well as in weight and dry mouth recovery (P>0.05). Conclusion: PEG seems not to have a detrimental effect on long-term quality of life, including the swallowing function of NPC patients.