Fig. 1From: Patient- and treatment-related risk factors associated with neck muscle spasm in nasopharyngeal carcinoma patients after intensity-modulated radiotherapyDose tolerance curves for post-radiotherapy neck muscle spasm in the sternocleidomastoid muscle (SCM). Dose-volume histograms was created using the cut-off points in Table 3. The area under the DVH curve represented tolerable doses for the SCM with respect to post-radiotherapy neck muscle spasmBack to article page