Summary of current Merkel Cell Carcinoma literature.

NR—not reported* pN0 cohort did not have significantly better survival than the cN0 cohort (hazard ratio, 1.19; 95% CI, 0.53–2.68)Summary of current Merkel Cell Carcinoma literature.NR（未报告）：pN0队列的生存期未显著优于cN0队列（风险比为1.19；95%置信区间为0.53~2.68），该结论为当前默克尔细胞癌（Merkel Cell Carcinoma）相关文献的综述总结。