fig3

Figure 3. Overall survival. Comparison of overall survival between the EBRT group and the non-EBRT group. (A) Time since LNM was diagnosed (month); (B) Time since LN was found (month); (C) Type B vs. type non-B; (D) Type B vs. type C. Type B: Right middle cardiophrenic angle LN; Type non-B: right superior diaphragmatic LN, right pericardium cardiophrenic angle LN, right posterior cardiophrenic angle LN, left anterior cardiophrenic angle LN, and left posterior cardiophrenic angle LN; Type C: right pericardium cardiophrenic angle LN; LN: lymph node; LNM: lymph node metastasis; EBRT: external beam radiation therapy.