The differences of serum IL-9 levels in various clinical factors.

Abbreviations: ECOG, Eastern Cooperative Oncology Group; LDH, lactate dehydrogenase;LN, local lymph node; IPI, international prognostic index; KPI, Korean prognostic index.缩略语对照表：ECOG（东部肿瘤协作组，Eastern Cooperative Oncology Group）；LDH（乳酸脱氢酶，lactate dehydrogenase）；LN（局部淋巴结，local lymph node）；IPI（国际预后指数，international prognostic index）；KPI（韩国预后指数，Korean prognostic index）。