Retrospective Cohort Study
Copyright ©The Author(s) 2016.
World J Radiol. Feb 28, 2016; 8(2): 192-199
Published online Feb 28, 2016. doi: 10.4329/wjr.v8.i2.192
Figure 4
Figure 4 Significant differences between control and test groups. HNC: Head and neck cancer.