Fig. 3

a Forest plots of postoperative radiotherapy vs. surgery alone group on the LR for HNMM; (b) Forest plots of postoperative radiotherapy vs. surgery alone group on the DM for HNMM
a Forest plots of postoperative radiotherapy vs. surgery alone group on the LR for HNMM; (b) Forest plots of postoperative radiotherapy vs. surgery alone group on the DM for HNMM